<Table> United States Department of Defense <Tr> <Td colspan="2"> </Td> </Tr> <Tr> <Th colspan="2"> Department overview </Th> </Tr> <Tr> <Th> Formed </Th> <Td> September 18 , 1947 ; 70 years ago ( 1947 - 09 - 18 ) ( as National Military Establishment ) </Td> </Tr> <Tr> <Th> Preceding Department </Th> <Td> <Ul> <Li> U.S. Department of War U.S. Department of the Navy </Li> </Ul> </Td> </Tr> <Tr> <Th> Type </Th> <Td> Executive Department </Td> </Tr> <Tr> <Th> Headquarters </Th> <Td> The Pentagon Arlington County , Virginia , US 38 ° 52 ′ 16 '' N 77 ° 3 ′ 21 '' W ﻿ / ﻿ 38.87111 ° N 77.05583 ° W ﻿ / 38.87111 ; - 77.05583 Coordinates : 38 ° 52 ′ 16 '' N 77 ° 3 ′ 21 '' W ﻿ / ﻿ 38.87111 ° N 77.05583 ° W ﻿ / 38.87111 ; - 77.05583 </Td> </Tr> <Tr> <Th> Employees </Th> <Td> <P> 742,000 ( civilian ) 1,300,000 ( active duty military ) 826,000 ( National Guard and reserve ) : </P> 2.87 million total ( 2016 ) </Td> </Tr> <Tr> <Th> Annual budget </Th> <Td> US $530.1 billion ( 2010 ) US $549.1 billion ( 2011 ) US $553.0 billion ( est. 2012 ) US $496.1 billion ( 2015 ) US $534.3 billion ( base FY2016 ) </Td> </Tr> <Tr> <Th> Department executives </Th> <Td> <Ul> <Li> James Mattis , Secretary </Li> <Li> Patrick M. Shanahan , Deputy Secretary </Li> </Ul> </Td> </Tr> <Tr> <Th> Child agencies </Th> <Td> <Ul> <Li> U.S. Department of the Army </Li> <Li> U.S. Department of the Navy </Li> <Li> U.S. Department of the Air Force </Li> </Ul> </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.defense.gov </Td> </Tr> </Table>
<Table> United States Department of Defense <Tr> <Td colspan="2"> </Td> </Tr> <Tr> <Th colspan="2"> Department overview </Th> </Tr> <Tr> <Th> Formed </Th> <Td> September 18 , 1947 ; 70 years ago ( 1947 - 09 - 18 ) ( as National Military Establishment ) </Td> </Tr> <Tr> <Th> Preceding Department </Th> <Td> <Ul> <Li> U.S. Department of War U.S. Department of the Navy </Li> </Ul> </Td> </Tr> <Tr> <Th> Type </Th> <Td> Executive Department </Td> </Tr> <Tr> <Th> Headquarters </Th> <Td> The Pentagon Arlington County , Virginia , US 38 ° 52 ′ 16 '' N 77 ° 3 ′ 21 '' W ﻿ / ﻿ 38.87111 ° N 77.05583 ° W ﻿ / 38.87111 ; - 77.05583 Coordinates : 38 ° 52 ′ 16 '' N 77 ° 3 ′ 21 '' W ﻿ / ﻿ 38.87111 ° N 77.05583 ° W ﻿ / 38.87111 ; - 77.05583 </Td> </Tr> <Tr> <Th> Employees </Th> <Td> <P> 742,000 ( civilian ) 1,300,000 ( active duty military ) 826,000 ( National Guard and reserve ) : </P> 2.87 million total ( 2016 ) </Td> </Tr> <Tr> <Th> Annual budget </Th> <Td> US $530.1 billion ( 2010 ) US $549.1 billion ( 2011 ) US $553.0 billion ( est. 2012 ) US $496.1 billion ( 2015 ) US $534.3 billion ( base FY2016 ) </Td> </Tr> <Tr> <Th> Department executives </Th> <Td> <Ul> <Li> James Mattis , Secretary </Li> <Li> Patrick M. Shanahan , Deputy Secretary </Li> </Ul> </Td> </Tr> <Tr> <Th> Child agencies </Th> <Td> <Ul> <Li> U.S. Department of the Army </Li> <Li> U.S. Department of the Navy </Li> <Li> U.S. Department of the Air Force </Li> </Ul> </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.defense.gov </Td> </Tr> </Table>
primary military leader within the department of defense
primary military leader within the department of defense
James Mattis , Secretary
James Mattis , Secretary