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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 V9cCMtGkN+uUO2WbkkuABJ9YnCuQKthik3Qz3v9EctEirzilNBvrXiBnm/Z5lFIF
 543EQVkPP/DHSMIY/JR2uA==

<SEC-DOCUMENT>0001140361-08-016937.txt : 20080711
<SEC-HEADER>0001140361-08-016937.hdr.sgml : 20080711
<ACCEPTANCE-DATETIME>20080711141300
ACCESSION NUMBER:		0001140361-08-016937
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080709
FILED AS OF DATE:		20080711
DATE AS OF CHANGE:		20080711

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALLIED DEFENSE GROUP INC
		CENTRAL INDEX KEY:			0000003952
		STANDARD INDUSTRIAL CLASSIFICATION:	ORDNANCE & ACCESSORIES, (NO VEHICLES/GUIDED MISSILES) [3480]
		IRS NUMBER:				042281015
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		8000 TOWERS CRESCENT DR
		STREET 2:		SUITE 260
		CITY:			VIENNA
		STATE:			VA
		ZIP:			22182
		BUSINESS PHONE:		7038475268

	MAIL ADDRESS:	
		STREET 1:		8000 TOWERS CRESCENT DRIVE
		STREET 2:		STE 750
		CITY:			VIENNA
		STATE:			VA
		ZIP:			22182

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALLIED RESEARCH CORP
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALLIED RESEARCH ASSOCIATES INC
		DATE OF NAME CHANGE:	19880601

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MEYER JOHN G JR
		CENTRAL INDEX KEY:			0001188690

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11376
		FILM NUMBER:		08948749

	BUSINESS ADDRESS:	
		STREET 1:		C/O ALLIED RESEARCH CORP
		STREET 2:		8000 TOWERS CRESCENT DR STE 260
		CITY:			VIENNA
		STATE:			VA
		ZIP:			22182
		BUSINESS PHONE:		7038475268

	MAIL ADDRESS:	
		STREET 1:		11109 CHESSINGTON PLACE
		CITY:			RESTON
		STATE:			VA
		ZIP:			20194
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-07-09</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000003952</issuerCik>
        <issuerName>ALLIED DEFENSE GROUP INC</issuerName>
        <issuerTradingSymbol>ADG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001188690</rptOwnerCik>
            <rptOwnerName>MEYER JOHN G JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8000 TOWERS CRESCENT DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 260</rptOwnerStreet2>
            <rptOwnerCity>VIENNA</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>22182</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-07-09</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6452</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>5.58</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>79356</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Includes 1,637, 4,681 and 6,452 shares of which Mr. Meyer agreed to defer receipt on July 1, 2006, 2007 and 2008, respectively, pursuant to the ADG deferred compensation plan.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>John G. Meyer, Jr.</signatureName>
        <signatureDate>2008-07-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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