<page_title> Military budget of the United States </page_title> <section_title> Budget by year </section_title> <table> <cell> 637 <col_header> 2010s </col_header> <col_header> 15 </col_header> </cell> <cell> 3.97 <col_header> 2010s </col_header> <col_header> 15 </col_header> </cell> </table>
In 2015, out of its budget of 3.97 trillion, the United States spent $637 billion on military.