From the Summary: "The President's FY2008 federal budget request, released February 5, 2007, included $647.2 billion in new budget authority for national defense. In addition to $483.2 billion for the regular operations of the Department of Defense (DOD), the request included $141.7 billion for continued military operations, primarily to fund the campaigns in Iraq and Afghanistan, $17.4 billion for the nuclear weapons and other defense-related programs of the Department of Energy, and $5.2 billion for defense-related activities of other agencies. On July 31, 2007, the President requested an additional $5.3 billion for war-fighting costs, increasing the total request for ongoing military operations to $147 billion. The $483.2 billion requested for DOD's 'base' budget-that is, the request for regular operations excluding the cost of ongoing combat activity-is $46.8 billion higher than the agency's base budget for FY2007, an increase of 11% in nominal terms and, by DOD's reckoning, an increase in real purchasing power of 8.0%, taking into account the cost of inflation. Congress now is in the process of acting on the FY2008 defense authorization and appropriations bills. The House passed on May 17 its version of the authorization bill, H.R. 1585, approving $1.2 billion more than the President's request. The bill would cut hundreds of millions of dollars from several technologically advanced weapons programs while increasing funds for improvements in U.S. forces' near-term combat capabilities."
CRS Report for Congress, RL33999