With the passing of FY2006 supplemental bill H.R. 4939, Congress will have appropriated a total of about $437 billion for the three military operations initiated since the 9/11 attacks: Operation Enduring Freedom (OEF) covering Afghanistan and other Global War on Terror (GWOT) operations, Operation Noble Eagle (ONE) providing enhanced security at military bases, and Operation Iraqi Freedom (OIF), Iraq. On a monthly basis, the Department of Defense (DOD) spent an average of about $6.4 billion for OIF, $1.3 billion for OEF, and $180 million for enhanced base security in FY2005. Potential oversight issues for Congress include getting estimates of the cost to repair and replae war-worn equipment and of possible offsetting costs to DOD's regular budget because equipment is being fixed or bought earlier than planned. DOD's annual war funding may reach $118 billion in FY2006 if the pending supplemental is enacted.

This report details the total cost of counterterrorism operations in the Global War on Terror (GWOT) since the September 2001 terrorist attacks on the United States. This report also includes descriptions of relevant budgetary legislation.

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