Military Spending in the United States
In fiscal year 2015, military spending is projected to account for 54 percent of all federal discretionary spending, a total of $598.5 billion. Military spending includes: all regular activities of the Department of Defense; war spending; nuclear weapons spending; international military assistance; and other Pentagon-related spending.
(For the difference between mandatory and discretionary spending, see Federal Budget 101).
Discover more about US military spending:
Compare the U.S. to the rest of the world
How military spending has changed since 9/11
War Spending and the Pentagon Slush Fund
Pentagon Contractor Spotlight: Lockheed Martin