<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 2017 , the Congressional Budget Office reported spending of $590 billion for defense , about 15 % of the federal budget . For the FY 2019 president Donald Trump proposed an increase to the military to $681.1 billion . </P>
<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 2017 , the Congressional Budget Office reported spending of $590 billion for defense , about 15 % of the federal budget . For the FY 2019 president Donald Trump proposed an increase to the military to $681.1 billion . </P>
what percentage of the budget is spent on defense
what percentage of the budget is spent on defense
15
15