<Table> <Tr> <Td> </Td> <Td> This article needs to be updated . Please update this article to reflect recent events or newly available information . (November 2017) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs to be updated . Please update this article to reflect recent events or newly available information . (November 2017) </Td> </Tr> <P> The military budget is the portion of the discretionary United States federal budget allocated to the Department of Defense, or more broadly, the portion of the budget that goes to any military - related expenditures . The military budget pays the salaries, training, and health care of uniformed and civilian personnel, maintains arms, equipment and facilities, funds operations, and develops and buys new items . The budget funds four branches of the U.S. military: the Army, Marine Corps, Navy, and Air Force . In FY 2015, Pentagon and related spending totaled $598 billion, about 54% of the fiscal year 2015 U.S. discretionary budget . For FY 2017, President Obama proposed the base budget of $523.9 billion, which includes an increase of $2.2 billion over the FY 2016 enacted budget of $521.7 billion . </P> <P> For the period 2010 - 14, SIPRI found that the United States was the world's biggest exporter of major arms, accounting for 31 percent of global shares, followed by Russia with 27 percent . The USA delivered weapons to at least 94 recipients . The United States was also the world's eighth largest importer of major military equipment for the same period . The main imports were 19 transport aircraft from Italy; and equipment produced in the US under license--including 252 trainer aircraft of Swiss design, 223 light helicopters of German design and 10 maritime patrol aircraft of Spanish design . </P>

Percentage of the us budget spent on defense
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