United States Department of Defense
The Department of Defense is the USA's oldest and largest government agency, tracing its roots back to pre-Revolutionary times.
The Department of Defense is headed by Secretary of Defense and is not only in charge of the military, but it also employs civilian forces.
With over 1.4 million men and women on active duty, and 718,000 civilian personnel, the DOD an inventory of installations and facilities to ensure safety within the USA. The national security depends on DOD defense installations and facilities and resources as well as military service members and civilians operating around the globe. More than 450,000 employees are overseas, both afloat and ashore
The Department’s physical plant consists of more than several hundred thousand individual buildings and structures located at more than 5,000 different locations or sites including its headquarters at the Pentagon
