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                                                  (RIVERSOURCE INVESTMENTS LOGO)

                   PROSPECTUS SUPPLEMENT DATED JUNE 1, 2007*

                                                                                                   
FUND NAME                                                      PROSPECTUS DATE                           FORM NUMBER
RiverSource(R) Global Bond Fund                                Dec. 29, 2006                             S-6309-99 AC



The Principal Investment Strategies section of the RiverSource Global Bond Fund
prospectus has been replaced with the following:

The Fund is a non-diversified mutual fund that invests primarily in debt
obligations of U.S. and foreign issuers. Under normal market conditions, at
least 80% of the Fund's net assets will be invested in investment-grade
corporate or government debt obligations, including money market instruments, of
issuers located in at least three different countries. Although the Fund
emphasizes high and medium-quality debt securities, it may assume some credit
risk to achieve higher dividends and /or capital appreciation by buying below
investment-grade bonds (junk bonds). The Fund will provide shareholders with at
least 60 days' notice of any change in the 80% policy.

In pursuit of the Fund's objective, the investment manager (RiverSource
Investments, LLC) chooses investments by:

- -  Considering opportunities and risks by credit rating and currency.

- -  Identifying investment-grade U.S. and foreign bonds.

- -  Identifying below investment-grade U.S. and foreign bonds.

- -  Identifying bonds that can take advantage of currency movements and interest
   rate differences among nations.

In evaluating whether to sell a security, the investment manager considers,
among other factors, whether:

  -  The security is overvalued.

  -  The security continues to meet the standards described above.

The investment manager monitors the Fund's exposure to interest rate and foreign
currency fluctuations.

The investment manager may use derivatives such as futures, options, forward
contracts and swaps, including credit default swaps, in an effort to produce
incremental earnings, to hedge existing positions, interest rate fluctuations or
currency fluctuations, to increase market exposure and investment flexibility,
or to obtain or reduce credit exposure.

The following Derivatives Risk replaces the existing Derivatives Risk in the
Principal Risks section of the RiverSource Global Bond Fund prospectus:

DERIVATIVES RISK.  Derivatives are financial instruments that have a value which
depends upon, or is derived from, the value of something else, such as one or
more underlying securities, pools of securities, options, futures, indexes or
currencies. Gains or losses involving derivative instruments may be substantial,
because a relatively small price movement in the underlying security(ies),
instrument, currency or index may result in a substantial gain or loss for the
Fund. Derivative instruments in which the Fund invests will typically increase
the Fund's exposure to Principal Risks to which it is otherwise exposed, and may
expose the Fund to additional risks, including counterparty credit risk,
leverage risk, hedging risk, correlation risk and liquidity risk. Counterparty
credit risk is the risk that a counterparty to the derivative instrument becomes
bankrupt or otherwise fails to perform its obligations due to financial
difficulties, and the Fund may obtain no recovery of its investment or may only
obtain a limited recovery, and any recovery may be delayed. Hedging risk is the
risk that derivative instruments used to hedge against an opposite position, may
offset losses, but they may also offset gains. Correlation risk is related to
hedging risk and is the risk that there may be an incomplete correlation between
the hedge and the opposite position, which may result in increased or
unanticipated losses. Liquidity risk is the risk that the derivative instrument
may be difficult or impossible to sell or terminate, which may cause the Fund to
be in a position to do something the investment manager would not otherwise
choose, including, accepting a lower price for the derivative instrument,
selling other investments or foregoing another, more appealing investment
opportunity. Leverage risk is the risk that losses from the derivative
instrument may be greater than the amount invested in the derivative instrument.
Certain derivatives have the potential for unlimited losses, regardless of the
size of the initial investment. See the SAI for more information on derivative
instruments and related risks.

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S-6309-1 A (6/07)

*Valid until next prospectus update