N-CSRS

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811-3275

Legg Mason Partners Investment Funds, Inc.

(Exact name of registrant as specified in charter)

125 Broad Street, New York, NY	10004
(Address of principal executive offices)	(Zip code)

Robert I. Frenkel, Esq.

Legg Mason & Co., LLC

300 First Stamford Place, 4^th Floor

Stamford, CT 06902

(Name and address of agent for service)

Registrant’s telephone number, including area code: (800) 451-2010

Date of fiscal year end: December 31

Date of reporting period: June 30, 2006

ITEM 1. REPORT TO STOCKHOLDERS.

The Semi-Annual Report to Stockholders is filed herewith.

SEMI-ANNUAL

REPORT

JUNE 30, 2006

Legg Mason Partners

Real Return Strategy Fund

INVESTMENT PRODUCTS: NOT FDIC INSURED Ÿ NO BANK GUARANTEE Ÿ MAY LOSE VALUE

Legg Mason Partners Real Return Strategy Fund

Semi-Annual Report  •  June 30, 2006

What’s

Inside

Fund Objective

The Fund seeks capital appreciation and income.

Letter from the Chairman	I
Fund at a Glance	1
Fund Expenses	2
Schedule of Investments	4
Statement of Assets and Liabilities	12
Statement of Operations	13
Statements of Changes in Net Assets	14
Financial Highlights	15
Notes to Financial Statements	18
Board Approval of Management and Subadvisory Agreements	29

“Smith Barney”, “Salomon Brothers” and “Citi” are service marks of Citigroup, licensed for use by Legg Mason as the names of funds and investment managers. Legg Mason and its affiliates, as well as the Fund’s investment manager, are not affiliated with Citigroup.

Letter from the Chairman

R. JAY GERKEN, CFA

Chairman, President and Chief Executive Officer

Dear Shareholder,

The U.S. economy appeared to be on solid footing during the six-month reporting period. After gross domestic product (“GDP”)ⁱ rose 1.7% in the fourth quarter of 2005—the first quarter in which GDP growth did not surpass 3.0% in nearly three years—the economy rebounded sharply in the first quarter of 2006. During this time, GDP rose 5.6%, its best showing since the third quarter of 2003. Both strong consumer and business spending prompted the economic turnaround. In the second quarter of 2006, GDP growth was a more modest 2.5%, according to the Commerce Department’s initial reading for the period. The decline was largely attributed to lower consumer spending, triggered by higher interest rates and oil prices, as well as a cooling housing market. In addition, business spending fell during the quarter.

The Federal Reserve Board (“Fed”)ⁱⁱ continued to raise interest rates during the reporting period. Despite the “changing of the guard” from Fed Chairman Alan Greenspan to Ben Bernanke in early 2006, it was “business as usual” for the Fed, as it raised short-term interest rates four times during the period. Since it began its tightening campaign in June 2004, the Fed has increased rates 17 consecutive times, bringing the federal funds rateⁱⁱⁱ from 1.00% to 5.25%. Coinciding with its latest rate hike in June 2006, the Fed said: “The extent and timing of any additional firming…will depend on the evolution of the outlook for both inflation and economic growth, as implied by incoming information.”

For the six-month period ended June 30, 2006, the U.S. stock market produced positive returns, with the S&P 500 Index^iv returning 2.71%. While the economy expanded and corporate profits remained strong, the headwinds from steadily rising interest rates, inflationary pressures and the potential for additional Fed rate hikes tempered returns.

Looking at the market more closely, small-cap stocks outperformed their mid- and large-cap counterparts, with the

Legg Mason Partners Real Return Strategy Fund         I

Russell 2000^v, Russell Midcap^vi and Russell 1000^vii Indexes returning 8.21%, 4.84% and 2.76%, respectively. From an investment style perspective, value stocks significantly outperformed growth stocks, with the Russell 3000 Value^viii and Russell 3000 Growth^ix Indexes returning 6.90% and -0.32%, respectively, over the reporting period.

Performance Review

For the six months ended June 30, 2006, Class A shares of the Legg Mason Partners Real Return Strategy Fund, excluding sales charges, returned 10.73%. In comparison, the Fund’s unmanaged benchmarks, the S&P 500 Index, the Lehman Brothers Global Real: U.S. TIPS Index^x, the Morgan Stanley REIT Index^xi, the MSCI World Energy Index^xii and the MSCI World Metals and Mining Index^xiii, returned 2.71%, -1.77%, 13.47%, 12.57% and 22.26%, respectively, for the same period. The Lipper Multi-Cap Core Funds Category Average¹ increased 2.48% over the same time frame.

Performance Snapshot as of June 30, 2006 (excluding sales charges) (unaudited)
	6 Months
Real Return Strategy Fund — Class A Shares	10.73%
S&P 500 Index	2.71%
Lehman Brothers Global Real: U.S. TIPS Index	-1.77%
Morgan Stanley REIT Index	13.47%
MSCI World Energy Index	12.57%
MSCI World Metals and Mining Index	22.26%
Lipper Multi-Cap Core Funds Category Average	2.48%
The performance shown represents past performance. Past performance is no guarantee of future results and current performance may be higher or lower than the performance shown above. Principal value and investment returns will fluctuate and investors’ shares, when redeemed, may be worth more or less than their original cost. To obtain performance data current to the most recent month-end, please visit our website at www.leggmason.com/InvestorServices.
Excluding sales charges, Class B shares returned 10.42% and Class C shares returned 10.34% over the six months ended June 30, 2006. All share class returns assume the reinvestment of all distributions, including returns of capital, if any, at net asset value and the deduction of all Fund expenses. Returns have not been adjusted to include sales charges that may apply when shares are purchased or the deduction of taxes that a shareholder would pay on Fund distributions.
Performance figures reflect reimbursements and/or fee waivers, without which the performance would have been lower.

¹ Lipper, Inc. is a major independent mutual-fund tracking organization. Returns are based on the six-month period ended June 30, 2006, including the reinvestment of all distributions, including returns of capital, if any, calculated among the 899 funds in the Fund’s Lipper category, and excluding sales charges.

II         Legg Mason Partners Real Return Strategy Fund

Special Shareholder Notices

As part of the continuing effort to integrate investment products managed by the advisers acquired with Citigroup’s asset management business, Legg Mason, Inc. (“Legg Mason”) has recommended various Fund actions in order to streamline product offerings, standardize share class pricing features, eliminate redundancies and improve efficiencies within the organization. At Board meetings held during June and July 2006, the Fund’s Board reviewed and approved these recommendations, and provided authorization to move ahead with proxy solicitations for those matters needing shareholder approval.

The Fund’s Board has approved the termination and liquidation of the Fund. The Board intends to seek approval of the termination and liquidation from shareholders at a meeting expected to be held during the fourth quarter of 2006. The termination will occur as soon as reasonably practicable once the requisite shareholder approval has been obtained. Until such approval is received, the Fund’s assets will continue to be invested in accordance with the Fund’s investment objective. In the interim, however, the Board has voted to close the Fund to new purchases and exchange purchases, at the close of business on June 30, 2006, except that dividend reinvestment and Class B to Class A conversions will continue until the Fund is terminated.

The Fund’s Board has also approved the appointment of Legg Mason Partners Fund Advisor, LLC (“LMPFA”) as the Fund’s investment manager effective August 1, 2006, replacing Smith Barney Fund Management LLC (“SBFM”). The Fund’s Board has also approved the appointment of CAM North America, LLC (“CAM N.A.”), Batterymarch Financial Management, Inc. (“Batterymarch”) and Western Asset Management Company (“Western Asset”) as the Fund’s subadvisers effective August 1, 2006. The portfolio managers who are responsible for the day-to-day management of the Fund remain the same immediately prior to and immediately after the date of these changes. LMPFA, CAM N.A., Batterymarch, and Western Asset are wholly-owned subsidiaries of Legg Mason.

Legg Mason Partners Real Return Strategy Fund         III

Effective February 1, 2006, Smith Barney Fund Management LLC (“SBFM”) assumed portfolio management responsibilities for the Fund, and the subadvisory contracts with Citigroup Asset Management Limited and TIMCO Asset Management, Inc. were terminated. The Fund’s management fee rate did not change as a result of the sub-advisory contract terminations. At this time, management of the energy securities, real estate securities and metals and mining securities segments was assumed by a team of managers from Batterymarch. The team includes Thomas Linkas, Charles Lovejoy, Guy Bennett, Christopher W. Floyd and John Vietz.

Effective March 31, 2006, management of the Fund’s inflation protected securities segment was assumed by a team of investment professionals from Western Asset. The portfolio management team includes S. Kenneth Leech, Stephen A. Walsh, Carl L. Eichstaedt, Frederick Marki and Peter H. Stutz.

The Fund was formerly known as Smith Barney Real Return Strategy Fund.

Information About Your Fund

As you may be aware, several issues in the mutual fund industry have come under the scrutiny of federal and state regulators. Affiliates of the Fund’s Manager have, in recent years, received requests for information from various government regulators regarding market timing, late trading, fees, and other mutual fund issues in connection with various investigations. The regulators appear to be examining, among other things, the Fund’s response to market timing and shareholder exchange activity, including compliance with prospectus disclosure related to these subjects. The Fund is not in a position to predict the outcome of these requests and investigations.

Important information with regard to recent regulatory developments that may affect the Fund is contained in the Notes to Financial Statements included in this report.

IV         Legg Mason Partners Real Return Strategy Fund

As always, thank you for your confidence in our stewardship of your assets. We look forward to helping you meet your financial goals.

Sincerely,

R. Jay Gerken, CFA

Chairman, President and Chief Executive Officer

July 28, 2006

The information provided is not intended to be a forecast of future events, a guarantee of future results or investment advice. Views expressed may differ from those of the firm as a whole.

RISKS: The Fund is subject to the risks associated with the individual equity market sectors represented in the Fund and IPS. The equity sectors may be more volatile than other types of investments and are sensitive to movements in the prices of their underlying commodities and geopolitical factors. The Fund is also subject to concentration, small-cap, mid-cap and foreign securities risks. The risks associated with IPS include deflation, interest rate, extension, liquidity and prepayment risks. As interest rates rise, bond prices fall, reducing the value of the Fund’s share price. The Fund may use derivatives, such as options and futures, which can be illiquid, may disproportionately increase losses, and have a potentially large impact on Fund performance. These and other risks are detailed in the prospectus. Please see the Fund’s prospectus for more information on these and other risks.

All index performance reflects no deduction for fees, expenses or taxes. Please note an investor cannot invest directly in an index.

ⁱ Gross domestic product is a market value of goods and services produced by labor and property in a given country.

ⁱⁱ The Federal Reserve Board is responsible for the formulation of a policy designed to promote economic growth, full employment, stable prices, and a sustainable pattern of international trade and payments.

ⁱⁱⁱ The federal funds rate is the interest rate that banks with excess reserves at a Federal Reserve district bank charge other banks that need overnight loans.

^iv The S&P 500 Index is an unmanaged index of 500 stocks that is generally representative of the performance of larger companies in the U.S.

^v The Russell 2000 Index measures the performance of the 2,000 smallest companies in the Russell 3000 Index, which represents approximately 8% of the total market capitalization of the Russell 3000 Index.

^vi The Russell Midcap Index measures the performance of the 800 smallest companies in the Russell 1000 Index, which represents approximately 25% of the total market capitalization of the Russell 1000 Index.

^vii The Russell 1000 Index measures the performance of the 1,000 largest companies in the Russell 3000 Index, which represents approximately 92% of the total market capitalization of the Russell 3000 Index.

^viii The Russell 3000 Value Index measures the performance of those Russell 3000 Index companies with lower price-to-book ratios and lower forecasted growth values. (A price-to-book ratio is the price of a stock compared to the difference between a company’s assets and liabilities.)

^ix The Russell 3000 Growth Index measures the performance of those Russell 3000 Index companies with higher price-to-book ratios and higher forecasted growth values.

^x The Lehman Brothers Global Real: U.S. TIPS Index represents an unmanaged market index made up of U.S. Treasury Inflation Linked Index securities.

^xi The Morgan Stanley REIT Index is an unmanaged capitalization-weighted index of the most actively traded real estate investment trusts.

^xii The MSCI World Energy Index is a free float-adjusted market capitalization index that is designed to measure global developed market equity performance and focuses on the energy sector.

^xiii The MSCI World Metals and Mining Index is a free float-adjusted market capitalization index that is designed to measure global developed market equity performance and focuses on the metal and mining sectors.

Legg Mason Partners Real Return Strategy Fund         V

Fund at a Glance (unaudited)

Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report         1

Fund Expenses (unaudited)

Example

As a shareholder of the Fund, you may incur two types of costs: (1) transaction costs, including front-end and back-end sales charges (loads) on purchase payments; and (2) ongoing costs, including management fees; distribution and/or service (12b-1) fees; and other Fund expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds.

This example is based on an investment of $1,000 invested on January 1, 2006 and held for the six months ended June 30, 2006.

Actual Expenses

The table below titled “Based on Actual Total Return” provides information about actual account values and actual expenses. You may use the information provided in this table, together with the amount you invested, to estimate the expenses that you paid over the period. To estimate the expenses you paid on your account, divide your ending account value by $1,000 (for example, an $8,600 ending account value divided by $1,000 = 8.6), then multiply the result by the number under the heading entitled “Expenses Paid During the Period”.

Based on Actual Total Return(1)
	Actual Total Return Without Sales Charges(2)		Beginning Account Value		Ending Account Value		Annualized Expense Ratio		Expenses Paid During the Period(3)
Class A	10.73	%	$	1,000.00	$	1,107.30	1.18	%	$	6.17
Class B	10.42			1,000.00		1,104.20	1.92			10.02
Class C	10.34			1,000.00		1,103.40	1.92			10.01

⁽¹⁾ For the six months ended June 30, 2006.

⁽²⁾ Assumes reinvestment of all distributions, including returns of capital, if any, at net asset value and does not reflect the deduction of the applicable sales charge with respect to Class A shares or the applicable contingent deferred sales charges (“CDSC”) with respect to Class B and C shares. Total return is not annualized, as it may not be representative of the total return for the year. Performance figures may reflect fee waivers and/or expense reimbursements. Past performance is no guarantee of future results. In the absence of fee waivers and/or expense reimbursements, the total return would have been lower.

⁽³⁾ Expenses (net of fee waivers and/or expense reimbursements) are equal to each class’ respective annualized expense ratio multiplied by the average account value over the period, multiplied by the number of days in the most recent fiscal half-year, then divided by 365.

2         Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report

Fund Expenses (unaudited) (continued)

Hypothetical Example for Comparison Purposes

The table below titled “Based on Hypothetical Total Return” provides information about hypothetical account values and hypothetical expenses based on the actual expense ratio and an assumed rate of return of 5.00% per year before expenses, which is not the Fund’s actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use the information provided in this table to compare the ongoing costs of investing in the Fund and other funds. To do so, compare the 5.00% hypothetical example relating to the Fund with the 5.00% hypothetical examples that appear in the shareholder reports of the other funds.

Please note that the expenses shown in the table below are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as front-end or back-end sales charges (loads). Therefore, the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transaction costs were included, your costs would have been higher.

Based on Hypothetical Total Return(1)
	Hypothetical Annualized Total Return		Beginning Account Value		Ending Account Value		Annualized Expense Ratio		Expenses Paid During the Period(2)
Class A	5.00	%	$	1,000.00	$	1,018.94	1.18	%	$	5.91
Class B	5.00			1,000.00		1,015.27	1.92			9.59
Class C	5.00			1,000.00		1,015.27	1.92			9.59

⁽¹⁾ For the six months ended June 30, 2006.

⁽²⁾ Expenses (net of fee waivers and/or expense reimbursements) are equal to each class’ respective annualized expense ratio multiplied by the average account value over the period, multiplied by the number of days in the most recent fiscal half-year, then divided by 365.

Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report         3

Schedule of Investments (June 30, 2006) (unaudited)

LEGG MASON PARTNERS REAL RETURN STRATEGY FUND

Shares	Security	Value
COMMON STOCKS — 72.3%
ENERGY — 29.0%
Energy Equipment & Services — 3.6%
1,800	ENSCO International Inc.	$	82,836
1,800	Ensign Energy Services Inc.		37,033
1,945	Halliburton Co.		144,338
1,250	Helix Energy Solutions Group Inc.*		50,450
1,250	Helmerich & Payne Inc.		75,325
860	Maverick Tube Corp.*		54,343
880	Nabors Industries Ltd.*		29,735
1,160	Patterson-UTI Energy Inc.		32,840
507	Petroleum Geo-Services ASA*		28,583
1,300	Precision Drilling Trust		43,256
3,850	Schlumberger Ltd.		250,674
1,600	Unit Corp.*		91,024
	Total Energy Equipment & Services		920,437
Oil, Gas & Consumable Fuels — 25.4%
2,000	Anadarko Petroleum Corp.		95,380
1,200	Apache Corp.		81,900
15,479	BG Group PLC		206,756
58,058	BP PLC		676,746
800	Cameco Corp.		31,907
1,500	Canadian Natural Resources Ltd.		83,031
6,898	Chevron Corp.		428,090
1,560	ConocoPhillips		102,227
1,300	Devon Energy Corp.		78,533
5,359	EnCana Corp.		282,336
6,661	Eni SpA		196,026
17,856	Exxon Mobil Corp.		1,095,466
3,800	Frontier Oil Corp.		123,120
2,742	Gazprom, Registered Shares, Sponsored ADR		115,301
1,620	Hess Corp.		85,617
1,200	Husky Energy Inc.		75,401
6	Inpex Holdings Inc.*		52,923
1,922	Kerr-McGee Corp.		133,291
1,700	Marathon Oil Corp.		141,610
1,700	Nexen Inc.		95,901
2,500	OAO Gazprom, Sponsored ADR		105,125
1,800	Occidental Petroleum Corp.		184,590
2,809	Petroleo Brasileiro SA, Sponsored ADR		224,271
7,900	PTT Public Co., Ltd.		46,787
	Royal Dutch Shell PLC:
10,536	Class A Shares		354,088
5,500	Class B Shares		192,279
5,900	Saipem SpA		134,125
660	St. Mary Land & Exploration Co.		26,565

See Notes to Financial Statements.

4         Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report

Schedule of Investments (June 30, 2006) (unaudited) (continued)

Shares	Security	Value
Oil, Gas & Consumable Fuels — 25.4% (continued)
4,859	Statoil ASA	$	137,748
2,150	Suncor Energy Inc.		174,198
700	Sunoco Inc.		48,503
1,450	Tesoro Corp.		107,822
5,732	Total SA		376,853
2,400	Trican Well Service Ltd.		48,000
4,900	Tullow Oil PLC		34,605
2,500	Valero Energy Corp.		166,300
1,550	Woodside Petroleum Ltd.		50,621
	Total Oil, Gas & Consumable Fuels		6,594,042
	TOTAL ENERGY		7,514,479
EXCHANGE TRADED FUNDS — 0.1%
500	iShares Dow Jones U.S. Real Estate Index Fund		35,625
INDUSTRIAL — 0.0%
507	Petrojarl ASA*		3,339
MATERIALS — 19.4%
Chemicals — 0.0%
193	Tronox Inc., Class B Shares		2,541
Metals & Mining — 19.4%
395	Aber Diamond Corp.		12,119
2,829	Alcan Inc., Toronto Shares		132,671
6,136	Alcoa Inc.		198,561
9,335	Alumina Ltd.		46,770
10,279	Anglo American PLC		421,493
4,978	Arcelor		240,069
3,268	Barrick Gold Corp.		96,633
21,575	BHP Billiton Ltd.		464,407
15,274	BHP Billiton PLC		296,215
8,225	BlueScope Steel Ltd.		48,535
800	Boehler-Uddeholm AG		43,703
3,450	Boliden AB		63,359
1,200	Companhia Vale do Rio Doce, Sponsored ADR		24,696
7,000	Daido Steel Co., Ltd.		54,897
6,000	Dowa Mining Co., Ltd.		53,028
1,850	Falconbridge Ltd.		97,561
1,500	First Quantum Minerals Ltd.		67,318
1,421	Freeport-McMoRan Copper & Gold Inc., Class B Shares		78,738
1,350	Gerdau SA, Sponsored ADR		20,129
3,710	Gold Fields Ltd., Sponsored ADR		84,959
18,000	Grupo Mexico SA de CV, Series B Shares		51,667
710	Impala Platinum Holdings Ltd.		130,821
2,700	JFE Holdings Inc.		114,362
3,230	Kinross Gold Corp.*		35,255
22,000	Kobe Steel Ltd.		68,783
646	Meridian Gold Inc.*		20,405

See Notes to Financial Statements.

Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report         5

Schedule of Investments (June 30, 2006) (unaudited) (continued)

Shares	Security	Value
Metals & Mining — 19.4% (continued)
11,000	Mitsui Mining & Smelting Co., Ltd.	$	64,844
2,650	Newcrest Mining Ltd.		41,464
1,943	Newmont Mining Corp.		102,843
31,000	Nippon Steel Corp.		117,226
2,570	Nucor Corp.		139,423
15,900	OneSteel Ltd.		48,033
19,400	Oxiana Ltd.		45,503
2,032	Phelps Dodge Corp.		166,949
1,517	Rautaruukki OYJ		45,787
400	Reliance Steel & Aluminum Co.		33,180
1,831	Rio Tinto Ltd.		105,735
7,362	Rio Tinto PLC		389,124
290	Southern Copper Corp.		25,848
2,079	SSAB Svenskt Stal AB, Series A		41,351
801	SSAB Svenskt Stal AB, Series B		15,099
9,000	Sumitomo Metal Industries Ltd.		37,099
5,000	Sumitomo Metal Mining Co., Ltd.		65,150
1,840	Teck Cominco Ltd., Class B Shares		110,532
2,803	ThyssenKrupp AG		95,885
2,400	Tokyo Steel Manufacturing Co., Ltd.		52,504
916	United States Steel Corp.		64,230
2,200	Vedanta Resources PLC		55,437
300	Voestalpine AG		45,543
2,850	Xstrata PLC		108,013
7,300	Zinifex Ltd.		54,293
	Total Metals & Mining		5,038,249
	TOTAL MATERIALS		5,040,790
REAL ESTATE INVESTMENT TRUSTS (REITs) — 23.8%
Apartments — 2.6%
2,600	Apartment Investment and Management Co., Class A Shares		112,970
2,757	Archstone-Smith Trust		140,249
1,501	Avalonbay Communities Inc.		166,041
1,062	BRE Properties Inc., Class A Shares		58,410
2,111	Equity Residential		94,425
141	Essex Property Trust Inc.		15,744
1,320	Home Properties Inc.		73,273
60	Post Properties Inc.		2,720
	Total Apartments		663,832
Diversified — 7.1%
8,450	British Land Co. PLC		197,305
27,000	Cheung Kong Holdings Ltd.		292,700
1,140	Hammerson PLC		24,954
606	Investors Real Estate Trust		5,472
2,050	iStar Financial Inc.		77,388
5,300	Land Securities Group PLC		175,783

See Notes to Financial Statements.

6         Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report

Schedule of Investments (June 30, 2006) (unaudited) (continued)

Shares	Security	Value
Diversified — 7.1% (continued)
1,010	Metrovacesa SA	$	91,118
11,000	Mitsubishi Estate Company Ltd.		233,440
10,000	Mitsui Fudosan Co., Ltd.		217,021
1,000	Rodamco Europe NV		97,947
3,578	Spirit Finance Corp.		40,288
14,675	Stockland		76,466
11,000	Swire Pacific Ltd., Class A Shares		113,512
500	Tokyu Land Corp.		3,891
170	Unibail		29,609
1,402	Vornado Realty Trust		136,765
200	Wereldhave NV		19,436
	Total Diversified		1,833,095
Health Care — 0.2%
1,816	Health Care Property Investors Inc.		48,560
Home Financing — 0.6%
2,400	Brookfield Asset Management Inc., Class A		96,560
1,200	New Century Financial Corp.		54,900
	Total Home Financing		151,460
Industrial — 1.1%
1,935	AMB Property Corp.		97,814
3,701	ProLogis		192,896
	Total Industrial		290,710
Industrial/Office – Mixed — 2.5%
6,000	CB Richard Ellis Group Inc., Class A Shares*		149,400
5,750	Centro Properties Group		28,553
853	Duke Realty Corp.		29,983
55,000	Hang Lung Properties Ltd.		99,491
47,000	New World Development Co., Ltd.		76,851
66,000	Sino Land Co., Ltd.		105,369
6,000	Sumitomo Realty & Development Co., Ltd.		147,766
	Total Industrial/Office – Mixed		637,413
Lodging/Resorts — 1.7%
1,013	FelCor Lodging Trust Inc.		22,022
624	Highland Hospitality Corp.		8,786
2,041	Hospitality Properties Trust		89,641
8,645	Host Marriott Corp.		189,066
1,500	Jones Lang LaSalle Inc.		131,325
	Total Lodging/Resorts		440,840
Office — 2.8%
1,805	BioMed Realty Trust Inc.		54,042
1,400	Boston Properties Inc.		126,560
291	Corporate Office Properties Trust		12,245
6,364	Equity Office Properties Trust		232,350

See Notes to Financial Statements.

Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report         7

Schedule of Investments (June 30, 2006) (unaudited) (continued)

Shares			Security	Value
	Office — 2.8% (continued)
	4,000		Leopalace21 Corp.	$	137,985
	652		SL Green Realty Corp.		71,374
	10,000		Sun Hung Kai Properties Ltd.		101,970
			Total Office		736,526
	Regional Malls — 2.5%
	1,346		General Growth Properties Inc.		60,651
	20,800		GPT Group		67,004
	900		Macerich Co.		63,180
	2,588		Simon Property Group Inc.		214,649
	1,023		Taubman Centers Inc.		41,841
	15,825		Westfield Group		203,560
			Total Regional Malls		650,885
	Retail – Free Standing — 0.9%
	1,351		Getty Realty Corp.		38,422
	9,550		Lend Lease Corp. Ltd.		99,168
	10,050		Macquarie Goodman Group		44,758
	2,417		National Retail Properties Inc.		48,219
			Total Retail – Free Standing		230,567
	Self Storage — 0.5%
	1,029		Public Storage Inc.		78,101
	1,051		Shurgard Storage Centers Inc., Class A Shares		65,688
			Total Self Storage		143,789
	Shopping Centers — 1.3%
	1,103		Developers Diversified Realty Corp.		57,555
	642		Federal Realty Investment Trust		44,940
	3,337		Kimco Realty Corp.		121,767
	1,522		Regency Centers Corp.		94,592
	541		Weingarten Realty Investors		20,709
			Total Shopping Centers		339,563
			TOTAL REAL ESTATE INVESTMENT TRUSTS (REITs)		6,167,240
			TOTAL COMMON STOCKS (Cost — $15,574,019)		18,761,473
Face Amount		Rating‡
	CORPORATE NOTES — 0.2%
	Capital Markets — 0.2%
$	60,000	A+	Lehman Brothers Holdings Inc., Medium-Term Notes, Series G, 4.270% due 9/28/07 (a) (Cost — $59,909)		59,296

See Notes to Financial Statements.

8         Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report

Schedule of Investments (June 30, 2006) (unaudited) (continued)

Face Amount		Security	Value
	U.S. GOVERNMENT OBLIGATIONS — 0.6%
$	90,000	U.S. Treasury Bonds, 6.250% due 8/15/23	$	99,288
	100,000	U.S. Treasury Strip Principal (STRIPS), zero coupon bond to yield 5.533% due 11/15/21		44,229
		TOTAL U.S. GOVERNMENT OBLIGATIONS (Cost — $143,135)		143,517
	U.S. TREASURY INFLATION PROTECTED SECURITIES (b) — 20.7%
		U.S. Treasury Bonds, Inflation Indexed:
	560,185	3.000% due 7/15/12		577,035
	1,709,888	2.375% due 1/15/25		1,664,737
		U.S. Treasury Notes, Inflation Indexed:
	187,035	3.625% due 1/15/08		190,308
	307,078	3.875% due 1/15/09		318,161
	718,392	4.250% due 1/15/10		763,404
	572,360	2.000% due 1/15/14		552,641
	1,265,976	1.625% due 1/15/15		1,180,573
	134,635	1.875% due 7/15/15		127,792
		TOTAL U.S. TREASURY INFLATION PROTECTED SECURITIES (Cost — $5,615,001)		5,374,651
		TOTAL INVESTMENTS BEFORE SHORT-TERM INVESTMENTS (Cost — $21,392,064)		24,338,937
	SHORT-TERM INVESTMENTS — 6.3%
	Repurchase Agreements — 6.2%
	542,000	Merrill Lynch, Pierce, Fenner & Smith Inc. repurchase agreement dated 6/30/06, 5.150% due 7/3/06; Proceeds at maturity — $542,233; (Fully collateralized by U.S. government agency obligation, 0.000% due 4/18/07; Market value — $555,002) (b)		542,000
	1,087,000	State Street Bank & Trust Co., dated 6/30/06, 4.080% due 7/3/06; Proceeds at maturity — $1,087,370; (Fully collateralized by U.S. Treasury Note, 4.625% due 3/31/08; Market value — $1,115,000)		1,087,000
		Total Repurchase Agreements		1,629,000
	U.S. Government Agency Obligation — 0.1%
	20,000	Federal National Mortgage Association (FNMA), Discount Notes, 5.053% due 9/25/06 (c)(d)		19,757
		TOTAL SHORT-TERM INVESTMENTS (Cost — $1,648,763)		1,648,757
		TOTAL INVESTMENTS — 100.1% (Cost — $23,040,827#)		25,987,694
		Liabilities in Excess of Other Assets — (0.1)%		(38,360	)
		TOTAL NET ASSETS — 100.0%	$	25,949,334

See Notes to Financial Statements.

Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report         9

Schedule of Investments (June 30, 2006) (unaudited) (continued)

* Non-income producing security.

‡ All ratings are by Standard & Poor’s Ratings Service, unless otherwise noted.

^(a) Variable rate security. Interest rate disclosed is that which is in effect at June 30, 2006.

^(b) All or a portion of this security is segregated for open futures contracts and written options.

^(c) Rate shown represents yield to maturity.

^(d) All or a portion of this security is held at the broker as collateral for open futures contracts.

# Aggregate cost for federal income tax purposes is substantially the same.

See page 11 for definitions of ratings.

Abbreviation used in this schedule:
ADR	— American Depositary Receipt

Summary of Investments by Country* (unaudited)

United States	57.3	%
United Kingdom	10.7
Japan	5.9
Australia	5.5
Canada	5.5
France	3.0
Italy	1.8
Hong Kong	1.6
Brazil	1.3
Norway	1.0
Netherlands	1.0
Netherlands Antilles	0.9
South Africa	0.8
Luxembourg	0.8
Sweden	0.6
Spain	0.5
Russia	0.4
Austria	0.4
Finland	0.3
Germany	0.2
Mexico	0.2
Bermuda	0.2
Cayman Islands	0.1
	100.0	%

* As a percent of total investments. Please note that Fund holdings are as of June 30, 2006 and are subject to change.

Schedule of Options Written (unaudited)

Contracts	Security	Expiration Date	Strike Price		Value
2	U.S. Treasury 10-Year Notes, Futures, Call	7/21/06	$	106.00	$	156
2	U.S. Treasury 5-Year Notes, Futures, Call	7/21/06		103.00		1,000
	TOTAL OPTIONS WRITTEN (Premiums received — $1,449)				$	1,156

See Notes to Financial Statements.

10         Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report

Bond Ratings (unaudited)

The definitions of the applicable rating symbols are set forth below:

Standard & Poor’s Ratings Service (“Standard & Poor’s”) — Ratings from “AA” to “A” may be modified by the addition of a plus (+) or minus (-) sign to show relative standings within the major rating categories.

AAA — Bonds rated “AAA” have the highest rating assigned by Standard & Poor’s. Capacity to pay interest and repay principal is extremely strong.

AA — Bonds rated “AA” have a very strong capacity to pay interest and repay principal and differ from the highest rated issues only in a small degree.

A — Bonds rated “A” have a strong capacity to pay interest and repay principal although they are somewhat more susceptible to the adverse effects of changes in circumstances and economic conditions than debt in higher rated categories.

Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report         11

Statement of Assets and Liabilities (June 30, 2006) (unaudited)

ASSETS:
Investments, at value (Cost — $23,040,827)	$	25,987,694
Foreign currency, at value (Cost — $13,163)		13,365
Cash		100,869
Receivable for Fund shares sold		94,354
Dividends and interest receivable		93,233
Receivable for securities sold		46,153
Receivable from investment manager		28,741
Receivable from broker — variation margin on open futures contracts		766
Prepaid expenses		20,869
Total Assets		26,386,044
LIABILITIES:
Payable for securities purchased		353,729
Payable for Fund shares repurchased		11,963
Distribution fees payable		5,132
Distributions payable		4,376
Directors’ fees payable		2,282
Options written, at value (premium received $1,449)		1,156
Accrued expenses		58,072
Total Liabilities		436,710
Total Net Assets	$	25,949,334
NET ASSETS:
Par value (Note 6)	$	1,836
Paid-in capital in excess of par value		21,711,451
Undistributed net investment income		26,362
Accumulated net realized gain on investments, futures contracts and foreign currency transactions		1,267,586
Net unrealized appreciation on investments, futures contracts, options written and foreign currencies		2,942,099
Total Net Assets	$	25,949,334
Shares Outstanding:
Class A		1,201,957
Class B		385,757
Class C		248,176
Net Asset Value:
Class A (and redemption price)		$14.13
Class B *		$14.14
Class C *		$14.13
Maximum Public Offering Price Per Share:
Class A (based on maximum sales charge of 5.00%)		$14.87

* Redemption price is NAV of Class B and C shares reduced by a 5.00% and 1.00% CDSC, respectively, if shares are redeemed within one year from purchase payment (See Note 2).

See Notes to Financial Statements.

12         Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report

Statement of Operations (For the six months ended June 30, 2006) (unaudited)

INVESTMENT INCOME:
Dividends	$	257,518
Interest		145,252
Less: Foreign taxes withheld		(15,795	)
Total Investment Income		386,975
EXPENSES:
Investment management fee (Note 2)		78,081
Distribution fees (Note 4)		59,996
Shareholder reports (Note 4)		46,631
Custody fees		35,938
Registration fees		15,895
Audit and tax		13,736
Transfer agent fees (Note 4)		13,462
Legal fees		9,968
Directors’ fees		1,166
Insurance		237
Miscellaneous expenses		9,320
Total Expenses		284,430
Less: Fee waivers and/or expense reimbursements (Notes 2 and 7)		(112,800	)
Net Expenses		171,630
Net Investment Income		215,345
REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, FUTURES CONTRACTS, OPTIONS WRITTEN AND FOREIGN CURRENCY TRANSACTIONS (NOTES 1 AND 3):
Net Realized Gain From:
Investment transactions		1,317,036
Futures contracts		73
Foreign currency transactions		11,554
Net Realized Gain		1,328,663
Change in Net Unrealized Appreciation/Depreciation From:
Investments		802,332
Futures contracts		(4,249	)
Options written		293
Foreign currencies		(774	)
Change in Net Unrealized Appreciation/Depreciation		797,602
Net Gain on Investments, Futures Contracts, Options Written and Foreign Currency Transactions		2,126,265
Increase in Net Assets From Operations	$	2,341,610

See Notes to Financial Statements.

Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report         13

Statements of Changes in Net Assets

For the six months ended June 30, 2006 (unaudited) and the periods ended December 31, 2005 and September 30, 2005
	2006			December 31, 2005(1)(2)			September 30, 2005(3)
OPERATIONS:
Net investment income	$	215,345		$	111,158		$	290,995
Net realized gain		1,328,663			182,166			152,261
Change in net unrealized appreciation/depreciation		797,602			(498,813	)		2,643,310
Increase (Decrease) in Net Assets From Operations		2,341,610			(205,489	)		3,086,566
DISTRIBUTIONS TO SHAREHOLDERS FROM (NOTES 1 AND 5):
Net investment income		(188,983	)		(175,988	)		(302,611	)
Net realized gains		(166,007	)		(193,482	)		—
Decrease in Net Assets From Distributions to Shareholders		(354,990	)		(369,470	)		(302,611	)
FUND SHARE TRANSACTIONS (NOTE 6):
Net proceeds from sale of shares		3,884,449			1,259,585			20,279,118
Reinvestment of distributions		337,755			349,309			278,538
Cost of shares repurchased		(1,747,785	)		(977,818	)		(1,909,433	)
Increase in Net Assets From Fund Share Transactions		2,474,419			631,076			18,648,223
Increase in Net Assets		4,461,039			56,117			21,432,178
NET ASSETS:
Beginning of period		21,488,295			21,432,178			—
End of period*	$	25,949,334		$	21,488,295		$	21,432,178
* Includes undistributed net investment income of:		$26,362			$—			$49,168

⁽¹⁾ For the period October 1, 2005 to December 31, 2005.

⁽²⁾ Effective October 1, 2005, Legg Mason Partners Real Return Strategy Fund changed its fiscal year end to December 31.

⁽³⁾ For the period November 12, 2004 (commencement of operations) to September 30, 2005.

See Notes to Financial Statements.

14         Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report

Financial Highlights

For a share of each class of capital stock outstanding throughout each period ended December 31, unless otherwise noted:

Class A Shares(1)	2006(2)			2005(3)(4)			2005(5)
Net Asset Value, Beginning of Period	$	12.96		$	13.31		$	11.40
Income (Loss) From Operations:
Net investment income		0.14			0.08			0.23
Net realized and unrealized gain (loss)		1.24			(0.20	)		1.91
Total Income (Loss) From Operations		1.38			(0.12	)		2.14
Less Distributions From:
Net investment income		(0.12	)		(0.11	)		(0.23	)
Net realized gains		(0.09	)		(0.12	)		—
Total Distributions		(0.21	)		(0.23	)		(0.23	)
Net Asset Value, End of Period	$	14.13		$	12.96		$	13.31
Total Return(6)		10.73	%		(0.87	)%		18.92	%
Net Assets, End of Period (000s)		$16,989			$14,660			$15,006
Ratios to Average Net Assets:
Gross expenses(7)		1.89	%		3.64	%		2.42	%
Net expenses(7)(8)(9)		1.18			1.20			1.20
Net investment income(7)		2.02			2.34			2.17
Portfolio Turnover Rate		58	%		4	%		52	%

⁽¹⁾ Per share amounts have been calculated using the average shares method.

⁽²⁾ For the six months ended June 30, 2006 (unaudited).

⁽³⁾ Effective October 1, 2005, Legg Mason Partners Real Return Strategy Fund changed its fiscal year end to December 31.

⁽⁴⁾ For the period October 1, 2005 to December 31, 2005.

⁽⁵⁾ For the period November 12, 2004 (commencement of operations) to September 30, 2005.

⁽⁶⁾ Performance figures may reflect fee waivers and/or expense reimbursements. Past performance is no guarantee of future results. In the absence of fee waivers and/or expense reimbursements, the total return would have been lower. Total returns for periods of less than one year are not annualized.

⁽⁷⁾ Annualized.

⁽⁸⁾ As a result of an expense limitation, the ratio of expenses to average net assets of Class A shares will not exceed 1.20%.

⁽⁹⁾ Reflects fee waivers and/or expense reimbursements.

See Notes to Financial Statements.

Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report         15

Financial Highlights (continued)

For a share of each class of capital stock outstanding throughout each period ended December 31, unless otherwise noted:

Class B Shares(1)	2006(2)			2005(3)(4)			2005(5)
Net Asset Value, Beginning of Period	$	12.96		$	13.31		$	11.40
Income (Loss) From Operations:
Net investment income		0.09			0.05			0.16
Net realized and unrealized gain (loss)		1.25			(0.19	)		1.90
Total Income (Loss) From Operations		1.34			(0.14	)		2.06
Less Distributions From:
Net investment income		(0.07	)		(0.09	)		(0.15	)
Net realized gains		(0.09	)		(0.12	)		—
Total Distributions		(0.16	)		(0.21	)		(0.15	)
Net Asset Value, End of Period	$	14.14		$	12.96		$	13.31
Total Return(6)		10.42	%		(1.06	)%		18.19	%
Net Assets, End of Period (000s)		$5,453			$4,247			$4,059
Ratios to Average Net Assets:
Gross expenses(7)		3.44	%		4.98	%		4.26	%
Net expenses(7)(8)(9)		1.92			1.95			1.95
Net investment income(7)		1.33			1.59			1.57
Portfolio Turnover Rate		58	%		4	%		52	%

⁽¹⁾ Per share amounts have been calculated using the average shares method.

⁽²⁾ For the six months ended June 30, 2006 (unaudited).

⁽³⁾ Effective October 1, 2005, Legg Mason Partners Real Return Strategy Fund changed its fiscal year end to December 31.

⁽⁴⁾ For the period October 1, 2005 to December 31, 2005.

⁽⁵⁾ For the period November 15, 2004 (commencement of operations) to September 30, 2005.

⁽⁶⁾ Performance figures may reflect fee waivers and/or expense reimbursements. Past performance is no guarantee of future results. In the absence of fee waivers and/or expense reimbursements, the total return would have been lower. Total returns for periods of less than one year are not annualized.

⁽⁷⁾ Annualized.

⁽⁸⁾ As a result of an expense limitation, the ratio of expenses to average net assets of Class B shares will not exceed 1.95%.

⁽⁹⁾ Reflects fee waivers and/or expense reimbursements.

See Notes to Financial Statements.

16         Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report

Financial Highlights (continued)

For a share of each class of capital stock outstanding throughout each period ended December 31, unless otherwise noted:

Class C Shares(1)	2006(2)			2005(3)(4)			2005(5)
Net Asset Value, Beginning of Period	$	12.96		$	13.31		$	11.40
Income (Loss) From Operations:
Net investment income		0.09			0.05			0.16
Net realized and unrealized gain (loss)		1.24			(0.19	)		1.90
Total Income (Loss) From Operations		1.33			(0.14	)		2.06
Less Distributions From:
Net investment income		(0.07	)		(0.09	)		(0.15	)
Net realized gains		(0.09	)		(0.12	)		—
Total Distributions		(0.16	)		(0.21	)		(0.15	)
Net Asset Value, End of Period	$	14.13		$	12.96		$	13.31
Total Return(6)		10.34	%		(1.06	)%		18.19	%
Net Assets, End of Period (000s)		$3,507			$2,581			$2,367
Ratios to Average Net Assets:
Gross expenses(7)		3.17	%		4.87	%		3.99	%
Net expenses(7)(8)(9)		1.92			1.95			1.95
Net investment income(7)		1.35			1.61			1.52
Portfolio Turnover Rate		58	%		4	%		52	%

⁽¹⁾ Per share amounts have been calculated using the average shares method.

⁽²⁾ For the six months ended June 30, 2006 (unaudited).

⁽³⁾ Effective October 1, 2005, Legg Mason Partners Real Return Strategy Fund changed its fiscal year end to December 31.

⁽⁴⁾ For the period October 1, 2005 to December 31, 2005.

⁽⁵⁾ For the period November 15, 2004 (commencement of operations) to September 30, 2005.

⁽⁶⁾ Performance figures may reflect fee waivers and/or expense reimbursements. Past performance is no guarantee of future results. In the absence of fee waivers and/or expense reimbursements, the total return would have been lower. Total returns for periods of less than one year are not annualized.

⁽⁷⁾ Annualized.

⁽⁸⁾ As a result of an expense limitation, the ratio of expenses to average net assets of Class C shares will not exceed 1.95%.

⁽⁹⁾ Reflects fee waivers and/or expense reimbursements.

See Notes to Financial Statements.

Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report         17

Notes to Financial Statements (unaudited)

1. Organization and Significant Accounting Policies

Legg Mason Partners Real Return Strategy Fund (formerly known as Smith Barney Real Return Strategy Fund) (the “Fund”) is a separate non-diversified series of Legg Mason Partners Investment Funds, Inc. (formerly known as Smith Barney Investment Funds Inc.) (the “Company”). The Company, a Maryland corporation, is registered under the Investment Company Act of 1940, as amended (the “1940 Act”), as an open-end management investment company.

The following are significant accounting policies consistently followed by the Fund and are in conformity with U.S. generally accepted accounting principles (“GAAP”). Estimates and assumptions are required to be made regarding assets, liabilities and changes in net assets resulting from operations when financial statements are prepared. Changes in the economic environment, financial markets and any other parameters used in determining these estimates could cause actual results to differ.

(a) Investment Valuation. Equity securities for which market quotations are available are valued at the last sale price or official closing price on the primary market or exchange on which they trade. Debt securities are valued at the mean between the bid and asked prices provided by an independent pricing service that are based on transactions in debt obligations, quotations from bond dealers, market transactions in comparable securities and various other relationships between securities. When prices are not readily available, or are determined not to reflect fair value, such as when the value of a security has been significantly affected by events after the close of the exchange or market on which the security is principally traded, but before the Fund calculates its net asset value, the Fund may value these investments at fair value as determined in accordance with the procedures approved by the Fund’s Board of Directors. Short-term obligations with maturities of 60 days or less are valued at amortized cost, which approximates market value.

(b) Repurchase Agreements. When entering into repurchase agreements, it is the Fund’s policy that its custodian or a third party custodian take possession of the underlying collateral securities, the market value of which at least equals the principal amount of the repurchase transaction, including accrued interest. To the extent that any repurchase transaction exceeds one business day, the value of the collateral is marked-to-market to ensure the adequacy of the collateral. If the seller defaults, and the market value of the collateral declines or if bankruptcy proceedings are commenced with respect to the seller of the security, realization of the collateral by the Fund may be delayed or limited.

(c) Financial Futures Contracts. The Fund may enter into financial futures contracts typically to attempt to hedge its portfolio, i.e., reduce the overall level of investment risk normally associated with the Fund, and for non-hedging purposes. Upon entering into a financial futures contract, the Fund is required to deposit cash or securities as initial margin. Additional securities are also segregated up to the current market value of the financial futures contracts. Subsequent payments, known as variation margin, are made or received by the Fund each day, depending on the daily fluctuation in the value of the underlying financial instruments. The Fund recognizes an unrealized gain or loss equal to the daily variation margin. When the financial futures contracts are closed, a realized gain or loss is recognized equal to the difference between the proceeds from (or cost of) the closing transactions and the Fund’s basis in the contracts.

18         Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report

Notes to Financial Statements (unaudited) (continued)

The risks associated with entering into financial futures contracts include the possibility that a change in the value of the contract may not correlate with the changes in the value of the underlying instruments. In addition, investing in financial futures contracts involves the risk that the Fund could lose more than the original margin deposit and subsequent payments required for a futures transaction. Risks may also arise upon entering into these contracts from the potential inability of the counterparties to meet the terms of their contracts.

(d) Written Options. When the Fund writes an option, an amount equal to the premium received by the Fund is recorded as a liability, the value of which is marked-to-market daily to reflect the current market value of the option written. If the option expires, the Fund realizes a gain from investments equal to the amount of the premium received. When a written call option is exercised, the difference between the premium and the amount for effecting a closing purchase transaction, including brokerage commission, is also treated as a realized gain or loss. When a written put option is exercised, the amount of the premium received reduces the cost of the security purchased by the Fund.

A risk in writing a covered call option is that the Fund may forego the opportunity of profit if the market price of the underlying security increases and the option is exercised. The risk in writing a put option is that the Fund may incur a loss if the market price of the underlying security decreases and the option is exercised. The risk in writing a call option is that the Fund is exposed to the risk of loss if the market price of the underlying security increases. In addition, there is the risk that the Fund may not be able to enter into a closing transaction because of an illiquid secondary market.

(e) Other Risks. The Fund primarily invests in the energy, real estate and metals and mining sectors, as well as inflation protected securities. Therefore, the Fund is subject to additional concentrations of credit and market risks associated with these industry segments, such as fluctuating prices and supplies of oil and other energy fuels, fluctuating property values, interest and mortgage related risks, price volatility caused by global economic, financial and political factors, resource availability and government regulation.

Additionally, the Fund’s investments in foreign securities may involve risks not present in domestic investments. Since securities may be denominated in foreign currencies and may require settlement in foreign currencies and pay interest and dividends in foreign currencies, changes in the relationship of these foreign currencies to the U.S. dollar can significantly affect the value of the investments and earnings of the Fund. Foreign investments may also subject the Fund to foreign government exchange restrictions, expropriation, taxation or other political, social or economic developments, all of which could affect the market and/or credit risk of the investments.

(f) Security Transactions and Investment Income. Security transactions are accounted for on a trade date basis. Interest income, adjusted for amortization of premium and accretion of discount, is recorded on the accrual basis. Dividend income is recorded on the ex-dividend date. Foreign dividend income is recorded on the ex-dividend date or as soon as practical after the Fund determines the existence of a dividend declaration after exercising reasonable due diligence. The cost of investments sold is determined by use of the specific identification method. To the extent any issuer defaults on an expected interest

Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report         19

Notes to Financial Statements (unaudited) (continued)

payment, the Fund’s policy is to generally halt any additional interest income accruals and consider the realizability of interest accrued up to the date of default.

(g) Foreign Currency Translation. Investment securities and other assets and liabilities denominated in foreign currencies are translated into U.S. dollar amounts based upon prevailing exchange rates on the date of valuation. Purchases and sales of investment securities and income and expense items denominated in foreign currencies are translated into U.S. dollar amounts based upon prevailing exchange rates on the respective dates of such transactions.

The Fund does not isolate that portion of the results of operations resulting from changes in foreign exchange rates on investments from the fluctuations arising from changes in market prices of securities held. Such fluctuations are included with the net realized and unrealized gain or loss on investments.

Net realized foreign exchange gains or losses arise from sales of foreign currencies, including gains and losses on forward foreign currency contracts, currency gains or losses realized between the trade and settlement dates on securities transactions and the difference between the amounts of dividends, interest and foreign withholding taxes recorded on the Fund’s books and the U.S. dollar equivalent of the amounts actually received or paid. Net unrealized foreign exchange gains and losses arise from changes in the fair values of assets and liabilities, other than investments in securities, at the date of valuation, resulting from changes in exchange rates.

Foreign security and currency transactions may involve certain considerations and risks not typically associated with those of U.S. dollar denominated transactions as a result of, among other factors, the possibility of lower levels of governmental supervision and regulation of foreign securities markets and the possibility of political or economic instability.

(h) Distributions to Shareholders. Distributions from net investment income for the Fund, if any, are declared and paid on a quarterly basis. Distributions of net realized gains, if any, are declared at least annually. Distributions are recorded on the ex-dividend date and are determined in accordance with income tax regulations, which may differ from GAAP.

(i) Class Accounting. Investment income, common expenses and realized/unrealized gain (loss) on investments are allocated to the various classes of the Fund on the basis of daily net assets of each class. Fees relating to a specific class are charged directly to that class.

(j) Federal and Other Taxes. It is the Fund’s policy to comply with the federal income and excise tax requirements of the Internal Revenue Code of 1986, as amended, applicable to regulated investment companies. Accordingly, the Fund intends to distribute substantially all of its income and net realized gains on investments, if any, to shareholders each year. Therefore, no federal income tax provision is required in the Fund’s financial statements. Under the applicable foreign tax laws, a withholding tax may be imposed on interest, dividends and capital gains at various rates.

(k) Reclassification. GAAP requires that certain components of net assets be adjusted to reflect permanent differences between financial and tax reporting. These reclassifications have no effect on net assets or net asset values per share.

20         Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report

Notes to Financial Statements (unaudited) (continued)

2. Investment Management Agreement and Other Transactions with Affiliates

For the period of this report, Smith Barney Fund Management LLC (“SBFM”), an indirect wholly-owned subsidiary of Legg Mason, Inc. (“Legg Mason”), acted as the investment manager of the Fund. Under the investment management agreement, the Fund paid an investment management fee calculated at an annual rate of 0.65% of the Fund’s average daily net assets. This fee is calculated daily and paid monthly.

During the six months ended June 30, 2006, SBFM waived its entire fee in the amount of $78,081. In addition, during the six months ended June 30, 2006, the Fund was reimbursed for expenses in the amount of $34,719.

During the six months ended June 30, 2006, the Fund’s Class A, B and C shares had voluntary expense limitations in place of 1.20%, 1.95% and 1.95%, respectively. These expense limitations may be modified or terminated at anytime by SBFM.

Citigroup Asset Management Limited (“CAM Ltd.”), an affiliate of SBFM, served as sub-adviser to the Fund pursuant to a Sub-Advisory Agreement since the Fund’s inception. CAM Ltd. managed the Fund’s Energy Securities segment under the supervision of SBFM. CAM Ltd. received a fee from SBFM, not the Fund, for its services, computed daily and paid monthly, at the annual rate of 0.45% of the Fund’s average daily net assets allocated to the Energy Securities segment.

TIMCO Asset Management Inc. (“TIMCO”), also an affiliate of SBFM, served as sub-adviser to the Fund pursuant to a Sub-Advisory Agreement since the Fund’s inception. TIMCO managed the Fund’s Real Estate Securities and Metals and Mining Securities segments under the supervision of SBFM. TIMCO received a fee from SBFM, not the Fund, for its services, computed daily and paid monthly, at the annual rate of 0.45% of the Fund’s average daily net assets allocated to the Real Estate Securities and Metals and Mining Securities segments.

Effective February 1, 2006, SBFM assumed portfolio management responsibilities for the Fund’s Energy Securities, Real Estate Securities and Metals and Mining Securities segments, and the sub-advisory contracts with CAM Ltd. with respect to the Fund’s Energy Securities segment and TIMCO with respect to the Fund’s Real Estate Securities and Metals and Mining Securities segments were terminated. The Fund’s management fee rate did not change as a result of the sub-advisory contract terminations.

Citigroup Global Markets Inc. (“CGM”), and Legg Mason Investor Services, LLC (“LMIS”), a wholly-owned broker-dealer subsidiary of Legg Mason, serve as co-distributors of the Fund.

There is a maximum initial sales charge of 5.00% for Class A shares. There is a contingent deferred sales charge (“CDSC”) of 5.00% on Class B shares, which applies if redemption occurs within one year from purchase payment. This CDSC declines thereafter by 1.00% per year until no CDSC is incurred. Class C shares have a 1.00% CDSC, which applies if redemption occurs within one year from purchase payment. In certain cases, Class A shares have a 1.00% CDSC, which applies if redemption occurs within one year from purchase payment. This CDSC only applies to those purchases of Class A shares which, when combined with current holdings of Class A shares, equal or exceed $1,000,000 in the aggregate. These purchases do not incur an initial sales charge.

Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report         21

Notes to Financial Statements (unaudited) (continued)

For the six months ended June 30, 2006, LMIS and its affiliates did not receive sales charges from the Fund’s Class A shares. In addition, for the six months ended June 30, 2006, there were no CDSCs paid to LMIS and its affiliates.

Certain officers and one Director of the Company are employees of Legg Mason or its affiliates and do not receive compensation from the Company.

3. Investments

During the six months ended June 30, 2006, the aggregate cost of purchases and proceeds from sales of investments (excluding short-term investments) and U.S. Government Obligations were as follows:

	Investments		U.S. Government Obligations
Purchases	$	12,707,428	$	2,250,031
Sales		11,958,826		1,663,627

At June 30, 2006, the aggregate gross unrealized appreciation and depreciation of investments for federal income tax purposes were substantially as follows:

Gross unrealized appreciation	$	3,443,943
Gross unrealized depreciation		(497,076	)
Net unrealized appreciation	$	2,946,867

At June 30, 2006, the Fund had the following open futures contracts:

Contracts to Buy	Number of Contracts	Expiration Date	Basis Value		Market Value		Unrealized Loss
Euro Dollar	5	12/06	$	1,183,275	$	1,180,062	$	(3,213	)
U.S. Treasury 10 Year Notes	1	9/06		105,896		104,860		(1,036	)
Net Unrealized Loss on Open Futures Contracts							$	(4,249	)

During the six months ended June 30, 2006, the written options for the Fund were as follows:

	Number of Contracts	Premiums Received
Options written, outstanding December 31, 2005	—	$	—
Options written	4		1,449
Options written, outstanding June 30, 2006	4	$	1,449

22         Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report

Notes to Financial Statements (unaudited) (continued)

4. Class Specific Expenses

The Fund has adopted a Rule 12b-1distribution plan and under that plan, the Fund pays a service fee with respect to its Class A, B and C shares calculated at the annual rate of 0.25% of the average daily net assets of each respective class. The Fund also pays a distribution fee with respect to its Class B and C shares calculated at the annual rate of 0.75% of the average daily net assets of each class, respectively. These fees are accrued daily and paid monthly.

For the six months ended June 30, 2006, class specific expenses were as follows:

	Distribution Fees		Transfer Agent Fees		Shareholder Reports Expenses
Class A	$	20,043	$	4,856	$	16,580
Class B		24,815		5,932		20,582
Class C		15,138		2,674		9,469
Total	$	59,996	$	13,462	$	46,631

5. Distributions to Shareholders by Class

	Six Months Ended June 30, 2006		Period Ended December 31, 2005(1)		Period Ended September 30, 2005(2)
Net Investment Income:
Class A	$	144,875	$	127,635	$	246,666
Class B		27,105		30,087		33,191
Class C		17,003		18,266		22,754
Total	$	188,983	$	175,988	$	302,611
Net Realized Gains:
Class A	$	109,013	$	134,033	$	—
Class B		34,693		37,242		—
Class C		22,301		22,207		—
Total	$	166,007	$	193,482	$	—

⁽¹⁾ For the period October 1, 2005 to December 31, 2005.

⁽²⁾ For the period November 12, 2004 (commencement of operations) to September 30, 2005 for Class A, and November 15, 2004 (commencement of operations) to September 30, 2005 for Classes B and C.

6. Capital Shares

At June 30, 2006, the Company had 10 billion shares of capital stock authorized with a par value of $0.001 per share. The Fund has the ability to issue multiple classes of shares. Each share of a class represents an identical interest in the Fund and has the same rights, except that each class bears certain direct expenses, including those specifically related to the distribution of its shares.

Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report         23

Notes to Financial Statements (unaudited) (continued)

Transactions in shares of each class were as follows:

	Six Months Ended June 30, 2006					Period Ended December 31, 2005(1)					Period Ended September 30, 2005(2)
	Shares		Amount			Shares		Amount			Shares		Amount
Class A
Shares sold	118,600		$	1,657,966		33,012		$	423,430		1,208,373		$	13,876,263
Shares issued on reinvestment	17,819			247,185		19,421			253,155		18,553			230,077
Shares repurchased	(65,803	)		(917,777	)	(48,655	)		(617,440	)	(99,363	)		(1,156,258	)
Net Increase	70,616		$	987,374		3,778		$	59,145		1,127,563		$	12,950,082
Class B
Shares sold	89,281		$	1,246,195		42,777		$	551,181		362,405		$	4,292,205
Shares issued on reinvestment	3,923			54,061		4,486			58,473		2,195			27,781
Shares repurchased	(35,096	)		(490,674	)	(24,553	)		(311,196	)	(59,661	)		(686,428	)
Net Increase	58,108		$	809,582		22,710		$	298,458		304,939		$	3,633,558
Class C
Shares sold	70,132		$	980,288		22,229		$	284,974		181,784		$	2,110,650
Shares issued on reinvestment	2,650			36,509		2,892			37,681		1,651			20,680
Shares repurchased	(23,771	)		(339,334	)	(3,793	)		(49,182	)	(5,598	)		(66,747	)
Net Increase	49,011		$	677,463		21,328		$	273,473		177,837		$	2,064,583

⁽¹⁾ For the period October 1, 2005 to December 31, 2005.

⁽²⁾ For the period November 12, 2004 (commencement of operations) to September 30, 2005 for Class A, and November 15, 2004 (commencement of operations) to September 30, 2005 for Classes B and C.

7. Regulatory Matters

On May 31, 2005, the U.S. Securities and Exchange Commission (“SEC”) issued an order in connection with the settlement of an administrative proceeding against SBFM and CGM relating to the appointment of an affiliated transfer agent for the Smith Barney family of mutual funds (the “Funds”).

The SEC order finds that SBFM and CGM willfully violated Section 206(1) of the Investment Advisers Act of 1940 (“Advisers Act”). Specifically, the order finds that SBFM and CGM knowingly or recklessly failed to disclose to the boards of the Funds in 1999 when proposing a new transfer agent arrangement with an affiliated transfer agent that: First Data Investors Services Group (“First Data”), the Funds’ then-existing transfer agent, had offered to continue as transfer agent and do the same work for substantially less money than before; and that Citigroup Asset Management (“CAM”), the Citigroup business unit that, at the time, included the Fund’s investment manager and other investment advisory companies, had entered into a side letter with First Data under which CAM agreed to recommend the appointment of First Data as sub-transfer agent to the affiliated transfer agent in exchange for, among other things, a guarantee by First Data of specified amounts of asset management and investment banking fees to CAM and CGM. The order also finds that SBFM and CGM willfully violated Section 206(2) of the Advisers Act by virtue of the omissions discussed above and other misrepresentations and omissions in the materials provided to the Funds’ boards, including the failure to make clear that the affiliated transfer agent would earn a high profit for performing limited functions while First Data continued

24         Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report

Notes to Financial Statements (unaudited) (continued)

to perform almost all of the transfer agent functions, and the suggestion that the proposed arrangement was in the Funds’ best interests and that no viable alternatives existed. SBFM and CGM do not admit or deny any wrongdoing or liability. The settlement does not establish wrongdoing or liability for purposes of any other proceeding.

The SEC censured SBFM and CGM and ordered them to cease and desist from violations of Sections 206(1) and 206(2) of the Advisers Act. The order requires Citigroup to pay $208.1 million, including $109 million in disgorgement of profits, $19.1 million in interest, and a civil money penalty of $80 million. Approximately $24.4 million has already been paid to the Funds, primarily through fee waivers. The remaining $183.7 million, including the penalty, has been paid to the U.S. Treasury and will be distributed pursuant to a plan submitted for the approval of the SEC. At this time, there is no certainty as to how the above-described proceeds of the settlement will be distributed, to whom such distributions will be made, the methodology by which such distributions will be allocated, and when such distributions will be made. The order also required that transfer agency fees received from the Funds since December 1, 2004, less certain expenses, be placed in escrow and provided that a portion of such fees might be subsequently distributed in accordance with the terms of the order. On April 3, 2006, an aggregate amount of approximately $9 million was distributed to the affected Funds.

The order required SBFM to recommend a new transfer agent contract to the Fund boards within 180 days of the entry of the order; if a Citigroup affiliate submitted a proposal to serve as transfer agent or sub-transfer agent, SBFM and CGM would have been required, at their expense, to engage an independent monitor to oversee a competitive bidding process. On November 21, 2005, and within the specified timeframe, the Fund’s Board selected a new transfer agent for the Fund. No Citigroup affiliate submitted a proposal to serve as transfer agent. Under the order, SBFM also must comply with an amended version of a vendor policy that Citigroup instituted in August 2004.

Although there can be no assurance, SBFM does not believe that this matter will have a material adverse effect on the Funds.

On December 1, 2005, Citigroup completed the sale of substantially all of its global asset management business, including SBFM, to Legg Mason.

8. Legal Matters

Beginning in August 2005, five class action lawsuits alleging violations of federal securities laws and state law were filed against CGM and SBFM (collectively, the “Defendants”) based on the May 31, 2005 settlement order issued against the Defendants by the SEC described in Note 7. The complaints seek injunctive relief and compensatory and punitive damages, removal of SBFM as the investment manager for the Smith Barney family of funds, rescission of the Funds’ management and other contracts with SBFM, recovery of all fees paid to SBFM pursuant to such contracts, and an award of attorneys’ fees and litigation expenses.

On October 5, 2005, a motion to consolidate the five actions and any subsequently filed, related action was filed. That motion contemplates that a consolidated amended complaint alleging substantially similar causes of action will be filed in the future.

Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report         25

Notes to Financial Statements (unaudited) (continued)

As of the date of this report, SBFM believes that resolution of the pending lawsuit will not have a material effect on the financial position or results of operations of the Funds or the ability of SBFM and its affiliates to continue to render services to the Funds under their respective contracts.

*  *   *

Beginning in June 2004, class action lawsuits alleging violations of the federal securities laws were filed against CGM and a number of its then affiliates, including SBFM and Salomon Brothers Asset Management (“SBAM”), which were then investment adviser or manager to certain of the Funds (the “Managers”), substantially all of the mutual funds then managed by the Managers (the “Defendant Funds”), and Board Members of the Defendant Funds (collectively, the “Defendants”). The complaints alleged, among other things, that CGM created various undisclosed incentives for its brokers to sell Smith Barney and Salomon Brothers funds. In addition, according to the complaints, the Managers caused the Defendant Funds to pay excessive brokerage commissions to CGM for steering clients towards proprietary funds. The complaints also alleged that the defendants breached their fiduciary duty to the Defendant Funds by improperly charging Rule 12b-1 fees and by drawing on fund assets to make undisclosed payments of soft dollars and excessive brokerage commissions. The complaints also alleged that the Defendant Funds failed to adequately disclose certain of the allegedly wrongful conduct. The complaints sought injunctive relief and compensatory and punitive damages, rescission of the Defendant Funds’ contracts with the Managers, recovery of all fees paid to the Managers pursuant to such contracts and an award of attorneys’ fees and litigation expenses.

On December 15, 2004, a consolidated amended complaint (the “Complaint”) was filed alleging substantially similar causes of action. On May 27, 2005, all of the Defendants filed motions to dismiss the Complaint. On July 26, 2006, the court issued a decision and order (1) finding that plaintiffs lacked standing to sue on behalf of the shareholders of the Funds in which none of the plaintiffs had invested (including Legg Mason Partners Real Return Strategy Fund) and dismissing those Funds from the case (although stating that they could be brought back into the case if standing as to them could be established), and (2) other than one stayed claim, dismissing all of the causes of action against the remaining Defendants, with prejudice, except for the cause of action under Section 36(b) of the Investment Company Act, which the court granted plaintiffs leave to repeal as a derivative claim.

9. Other Matters

On September 16, 2005, the staff of the SEC informed SBFM and SBAM that the staff is considering recommending that the SEC institute administrative proceedings against SBFM and SBAM for alleged violations of Section 19(a) and 34(b) of the Investment Company Act (and related Rule 19a-1). The notification is a result of an industry wide inspection by the SEC and is based upon alleged deficiencies in disclosures regarding dividends and distributions paid to shareholders of certain funds. Section 19(a) and related Rule 19a-1 of the Investment Company Act generally require funds that are making dividend and distribution payments to provide shareholders with a written statement disclosing

26         Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report

Notes to Financial Statements (unaudited) (continued)

the source of the dividends and distributions, and, in particular, the portion of the payments made from each of net investment income, undistributed net profits and/or paid-in capital. In connection with the contemplated proceedings, the staff may seek a cease and desist order and/or monetary damages from SBFM or SBAM.

Although there can be no assurance, SBFM believes that this matter is not likely to have a material adverse effect on the Fund.

10. Subsequent Events

The Fund’s Board has approved the appointment of Legg Mason Partners Fund Advisor, LLC (“LMPFA”) as the Fund’s investment manager effective August 1, 2006. The Fund’s Board has also approved the appointment of CAM North America, LLC (“CAM N.A.”) Batterymarch Financial Management, Inc. (“Batterymarch”) and Western Asset Management Company (“Western Asset”) as the Fund’s subadvisers effective August 1, 2006. The portfolio managers who are responsible for the day-to-day management of the Fund remain the same immediately prior to and immediately after the date of these changes. LMPFA, CAM N.A., Batterymarch and Western Asset are wholly-owned subsidiaries of Legg Mason.

LMPFA will provide administrative and certain oversight services to the Fund. LMPFA will delegate to the subadvisers the day-to-day portfolio management of the Fund. The Fund’s investment management fee will remain unchanged. For its services, LMPFA will pay the subadvisers 70% of the net management fee that it receives from the Fund. This fee will be divided between the subadvisers, on a pro rata basis, based on the assets allocated to each subadviser, from time to time.

The Fund’s Board has also approved the termination and liquidation of the Fund. The Board intends to seek approval of the termination and liquidation from shareholders at a meeting expected to be held during the fourth quarter of 2006. The termination will occur as soon as reasonably practicable once the requisite shareholder approval has been obtained. Until such approval is received, the Fund’s assets will continue to be invested in accordance with the Fund’s investment objective. In the interim, however, the Board has voted to close the Fund to new purchases and exchange purchases, on close of business June 30, 2006, except that dividend reinvestment and Class B to Class A conversions will continue until the Fund is terminated.

The Fund’s Board has also approved certain share class modifications which, among other things, will standardize share class features for all funds in the fund complex. The features standardized include such things as sales loads, distribution charges and other costs. These modifications are expected to be implemented during the fourth quarter of 2006.

The Fund’s Board has also approved a number of other initiatives designed to streamline and restructure the fund complex, and has authorized seeking shareholder approval for those initiatives where shareholder approval is required. As a result, Fund shareholders will be asked to elect a new Board, approve matters that will result in the Fund being grouped for organizational and governance purposes with other funds in the fund complex, and domicile the Fund as a Maryland business trust, with all funds operating under uniform charter documents. Fund shareholders also will be asked to approve investment matters, including standardized fundamental investment policies.

Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report         27

Notes to Financial Statements (unaudited) (continued)

Proxy materials describing these matters are expected to be sent to shareholders later in 2006. If shareholder approval is obtained, these matters generally are expected to be implemented during the first quarter of 2007.

11. Recent Accounting Pronouncement

During June 2006, the Financial Accounting Standards Board (“FASB”) issued FASB Interpretation 48 (“FIN 48” or the “Interpretation”), Accounting for Uncertainty in Income Taxes—an interpretation of FASB statement 109. FIN 48 supplements FASB Statement 109 by defining the confidence level that a tax position must meet in order to be recognized in the financial statements. FIN 48 prescribes a comprehensive model for how a fund should recognize, measure, present, and disclose in its financial statements uncertain tax positions that the fund has taken or expects to take on a tax return. FIN 48 requires that the tax effects of a position be recognized only if it is “more likely than not” to be sustained based solely on its technical merits. Management must be able to conclude that the tax law, regulations, case law, and other objective information regarding the technical merits sufficiently support the position’s sustainability with a likelihood of more than 50 percent. FIN 48 is effective for fiscal periods beginning after December 15, 2006, which for this Fund will be January 1, 2007. At adoption, the financial statements must be adjusted to reflect only those tax positions that are more likely than not to be sustained as of the adoption date. Management of the Fund is currently evaluating the impact that FIN 48 will have on the financial statements.

28         Legg Mason Partners Real Return Strategy Fund 2006 Semi-Annual Report

Board Approval of Management and Subadvisory Agreements (unaudited)

At a meeting held in person on June 29, 2006, the Fund’s Board, including a majority of the Board Members who are not “interested persons” of the Fund or Legg Mason Partners Fund Advisor, LLC (the “Manager”) or any sub-investment adviser or proposed sub-investment adviser as defined in the Investment Company Act of 1940, as amended (the “1940 Act”) (the “Independent Board Members”), approved a new management agreement (the “New Management Agreement”) between the Fund and the Manager. The Fund’s Board, including a majority of the Independent Board Members, also approved one or more new subadvisory agreements between the Manager and CAM N.A., Batterymarch and Western Asset (each a “Subadviser”) (each a “New Subadvisory Agreement”). The New Management Agreement and the New Subadvisory Agreements replaced the Fund’s prior management agreement with pre-8/1/06 manager and the prior subadvisory agreements with the Subadvisers and were entered into in connection with an internal reorganization of the Manager’s, the prior manager’s and the Subadvisers’ parent organization, Legg Mason. In approving the New Management Agreement and New Subadvisory Agreements, the Board, including the Independent Board Members, considered the factors discussed below, among other things.

The Board noted that the Manager will provide administrative and certain oversight services to the Fund, and that the Manager will delegate to each of the Subadvisers the day-to-day portfolio management of the Fund. The Board Members reviewed the qualifications, backgrounds and responsibilities of the senior personnel that will provide oversight and general management services and the portfolio management team that would be primarily responsible for the day-to-day management of the Fund. The Board Members noted that the portfolio management team was expected to be the same as then managing the Fund.

The Board Members received and considered information regarding the nature, extent and quality of services expected to be provided to the Fund by the Manager under the New Management Agreement and by the Subadvisers under the New Subadvisory Agreements. The Board Members’ evaluation of the services expected to be provided by the Manager and the Subadvisers took into account the Board Members’ knowledge and familiarity gained as Fund Board Members, including as to the scope and quality of Legg Mason’s investment management and other capabilities and the quality of its administrative and other services. The Board Members considered, among other things, information and assurances provided by Legg Mason as to the operations, facilities and organization of the Manager and the Subadvisers and the qualifications, backgrounds and responsibilities of their senior personnel. The Board Members further considered the financial resources available to the Manager, the Subadvisers and Legg Mason. The Board Members concluded that, overall, the nature, extent and quality of services expected to be provided under the New Management Agreement and the New Subadvisory Agreements were acceptable.

The Board Members also received and considered performance information for the Fund as well as comparative information with respect to a peer group of funds (the “Performance Universe”) selected by Lipper, Inc. (“Lipper”), an independent provider of

Legg Mason Partners Real Return Strategy Fund         29

Board Approval of Management and Subadvisory Agreements (unaudited) (continued)

investment company data. The Board Members were provided with a description of the methodology Lipper used to determine the similarity of the Fund to the funds included in the Performance Universe. The Board Members noted that they had received and discussed with management, at periodic intervals, information comparing the Fund’s performance against, among other things, its benchmarks. Based on the Board Members’ review, which included careful consideration of the factors noted above, the Board Members concluded that the performance of the Fund, under the circumstances, supported approval of the New Management Agreement and New Subadvisory Agreements.

The Board Members reviewed and considered the management fee that would be payable by the Fund to the Manager in light of the nature, extent and quality of the management services expected to be provided by the Manager, including the fee waiver and/or expense reimbursement arrangements currently in place. Additionally, the Board Members received and considered information comparing the Fund’s management fee and overall expenses with those of comparable funds in both the relevant expense group and a broader group of funds, each selected and provided by Lipper. The Board Members also reviewed and considered the subadvisory fee that would be payable by the Manager to the Subadvisers in light of the nature, extent and quality of the management services expected to be provided by the Subadvisers. The Board Members noted that the Manager, and not the Fund, will pay the subadvisory fee to each Subadviser. The Board Members determined that the Fund’s management fee and the Fund’s subadvisory fees were reasonable in light of the nature, extent and quality of the services expected to be provided to the Fund under the New Management Agreement and the New Subadvisory Agreements.

The Board Members received and considered a pro-forma profitability analysis of Legg Mason and its affiliates in providing services to the Fund, including information with respect to the allocation methodologies used in preparing the profitability data. The Board Members recognized that Legg Mason may realize economies of scale based on its internal reorganization and synergies of operations. The Board Members noted that it was not possible to predict with a high degree of confidence how Legg Mason’s and its affiliates’ profitability would be affected by its internal reorganization and by other factors including potential economies of scale, but that based on their review of the pro forma profitability analysis, their most recent prior review of the profitability of the predecessor manager and its affiliates from their relationship with the Fund and other factors considered, they determined that the management fee was reasonable. The Board Members noted that they expect to receive profitability information on an annual basis.

In their deliberations, the Board Members also considered, and placed significant importance on, information that had been received and conclusions that had been reached by the Board in connection with the Board’s most recent approval of the Fund’s prior management agreement and the prior subadvisory agreements, in addition to information provided in connection with the Board’s evaluation of the terms and conditions of the New Management Agreement and the New Subadvisory Agreements.

The Board Members considered Legg Mason’s advice and the advice of its counsel that the New Management Agreement and the New Subadvisory Agreements were being

30         Legg Mason Partners Real Return Strategy Fund

Board Approval of Management and Subadvisory Agreements (unaudited) (continued)

entered into in connection with an internal reorganization within Legg Mason, that did not involve an actual change of control or management. The Board Members further noted that the terms and conditions of the New Management Agreement are substantially identical to those of the Fund’s previous management agreement except for the identity of the Manager, and that the initial term of the New Management Agreement (after which it will continue in effect only if such continuance is specifically approved at least annually by the Board, including a majority of the Independent Board Members) was the same as that under the prior management agreement. They noted, in addition, that the terms and conditions of the New Subadvisory Agreements are likewise unchanged from those of the prior subadvisory agreements.

In light of all of the foregoing, the Board, including the Independent Board Members, approved the New Management Agreement and the New Subadvisory Agreements. No single factor reviewed by the Board Members was identified as the principal factor in determining whether to approve the New Management Agreement and the New Subadvisory Agreements. The Independent Board Members were advised by separate independent legal counsel throughout the process. The Independent Board Members also discussed the proposed approval of the New Management Agreement and the New Subadvisory Agreements in private sessions with their independent legal counsel at which no representatives of the Manager or Subadvisers were present.

Legg Mason Partners Real Return Strategy Fund         31

Legg Mason Partners Real Return Strategy Fund

DIRECTORS Paul R. Ades Dwight B. Crane R. Jay Gerken, CFA
Chairman Frank G. Hubbard Jerome H. Miller Ken Miller INVESTMENT MANAGER Legg Mason Partners Fund Advisor, LLC SUBADVISERS Batterymarch Financial Management, Inc. CAM North America, LLC Western Asset Management Company DISTRIBUTORS Citigroup Global Markets Inc. Legg Mason Investor
Services, LLC CUSTODIAN State Street Bank and Trust Company TRANSFER AGENT PFPC Inc.
4400 Computer Drive
Westborough, Massachusetts
01581 INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM KPMG LLP 345 Park Avenue New York, New York 10154

This report is submitted for the general information of shareholders Legg Mason Partners Real Return Strategy Fund, but it may also be used as sales literature when preceded or accompanied by the current Prospectus.

This report must be preceded or accompanied by a free prospectus. Investors should consider the Fund’s Investment objectives, risks, charges and expenses carefully before investing. The prospectus contains this and other important information about the Fund. Please read the prospectus carefully before investing.

www.leggmason.com/InvestorServices

©2006 Legg Mason Investor Services, LLC

Member NASD, SIPC

FD03160 8/06 SR06-96

Legg Mason Partners Real Return Strategy Fund

The Fund is a separate series of Legg Mason Partners Investment Funds Inc., a Maryland corporation.

LEGG MASON PARTNERS REAL RETURN STRATEGY FUND

Legg Mason Partners Funds

125 Broad Street

10th Floor, MF-2

New York, New York 10004

The Fund files its complete schedule of portfolio holdings with the Securities and Exchange Commission for the first and third quarters of each fiscal year on Form N-Q. The Fund’s Forms N-Q are available on the Commission’s website at www.sec.gov. The Fund’s Forms N-Q may be reviewed and copied at the Commission’s Public Reference Room in Washington D.C., and information on the operation of the Public Reference Room may be obtained by calling 1-800-SEC-0330. To obtain information on Form N-Q from the Fund, shareholders can call 1-800-451-2010.

Information on how the Fund voted proxies relating to portfolio securities during the prior 12-month period ended June 30th of each year, and a description of the policies and procedures that the Fund uses to determine how to vote proxies relating to portfolio securities is available (1) without charge, upon request, by calling 1-800-451-2010, (2) on the Fund’s website at www.leggmason.com/InvestorServices and (3) on the SEC’s website at www.sec.gov. Proxy voting reports for the period ended June 30, 2005 will continue to be listed under the Fund’s former Smith Barney Investment Funds Inc. — Smith Barney Real Return Strategy Fund name.

ITEM 2. CODE OF ETHICS.

Not Applicable.

ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

Not Applicable.

ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

Not applicable.

ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS.

Not applicable.

ITEM 6. SCHEDULE OF INVESTMENTS.

Included herein under Item 1.

ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable.

ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable.

ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS.

Not applicable.

ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

Not applicable.

ITEM 11. CONTROLS AND PROCEDURES.

(a) The registrant’s principal executive officer and principal financial officer have concluded that the registrant’s disclosure controls and procedures (as defined in Rule 30a- 3(c) under the Investment Company Act of 1940, as amended (the “1940 Act”)) are effective as of a date within 90 days of the filing date of this report that includes the disclosure required by this paragraph, based on their evaluation of the disclosure controls and procedures required by Rule 30a-3(b) under the 1940 Act and 15d-15(b) under the Securities Exchange Act of 1934.

(b) There were no changes in the registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act) that occurred during the registrant’s last fiscal half-year (the registrant’s second fiscal half-year in the case of an annual report) that have materially affected, or are likely to materially affect the registrant’s internal control over financial reporting.

ITEM 12. EXHIBITS.

(a) Not applicable.

(b) Attached hereto.

Exhibit 99.CERT	Certifications pursuant to section 302 of the Sarbanes-Oxley Act of 2002
Exhibit 99.906CERT	Certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this Report to be signed on its behalf by the undersigned, there unto duly authorized.

Legg Mason Partners Investment Funds, Inc.

By:	/s/ R. Jay Gerken
	(R. Jay Gerken)
	Chief Executive Officer of
	Legg Mason Partners Investment Funds, Inc.
Date: September 7, 2006

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By:	/s/ R. Jay Gerken
	(R. Jay Gerken)
	Chief Executive Officer of
	Legg Mason Partners Investment Funds, Inc.
Date: September 7, 2006

By:	/s/ Kaprel Ozsolak
	(Kaprel Ozsolak)
	Chief Financial Officer of
	Legg Mason Partners Investment Funds, Inc.
Date: September 7, 2006

EX-99.CERT

CERTIFICATIONS PURSUANT TO SECTION 302

EX-99.CERT

CERTIFICATIONS

I, R. Jay Gerken, certify that:

1. I have reviewed this report on Form N-CSR of Legg Mason Partners Investment Funds, Inc. - Legg Mason Partners Real Return Strategy Fund;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal half-year (the registrant’s second fiscal half-year in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officers and I have disclosed to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial Information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: September 7, 2006	/s/ R. Jay Gerken
	R. Jay Gerken
	Chief Executive Officer

I, Kaprel Ozsolak, certify that:

1. I have reviewed this report on Form N-CSR of Legg Mason Partners Investment Funds, Inc. - Legg Mason Partners Real Return Strategy Fund;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial information included in this report, and the financial statements on which the financial information is based, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal half-year (the registrant’s second fiscal half-year in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officers and I have disclosed to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial Information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: September 7, 2006	/s/ Kaprel Ozsolak
	Kaprel Ozsolak
	Chief Financial Officer

EX-99.906CT

CERTIFICATIONS PURSUANT TO SECTION 906

EX-99.906CERT

CERTIFICATION

R. Jay Gerken, Chief Executive Officer, and Kaprel Ozsolak, Chief Financial Officer of Legg Mason Partners Investment Funds, Inc. - Legg Mason Partners Real Return Strategy Fund (the “Registrant”), each certify to the best of his knowledge that:

1. The Registrant’s periodic report on Form N-CSR for the period ended June 30, 2006 (the “Form N-CSR”) fully complies with the requirements of section 15(d) of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the Form N-CSR fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

Chief Executive Officer	Chief Financial Officer
Legg Mason Partners Investment Funds, Inc. -	Legg Mason Partners Investment Funds, Inc. -
Legg Mason Partners Real Return Strategy Fund	Legg Mason Partners Real Return Strategy Fund
/s/ R. Jay Gerken	/s/ Kaprel Ozsolak
R. Jay Gerken	Kaprel Ozsolak
Date: September 7, 2006	Date: September 7, 2006

This certification is being furnished to the Securities and Exchange Commission solely pursuant to 18 U.S.C. § 1350 and is not being filed as part of the Form N-CSR with the Commission.