- Security domain
- Joint
- What it is
- executive department · ministry (level 2)
- Founded
- 1949
- Statutory basis
- National Security Act of 1947; 10 U.S.C.
- Acknowledged by
- defense.gov (official site)
- Active headcount
- not published
- Website
- www.defense.gov
- Identifiers
- factbase.org/org/05Z29ZQ478 · Q11209
- Government directory
- Department of Defense on government.ginc.org
Beneath it
- United States Army452,823
- United States Marine Corps168,527
- United States Navy344,600
- United States Air Force321,848
- North American Aerospace Defense Command–
- United States Space Force14,000
- United States Space Command–
- United States Cyber Command–
- United States Strategic Command150,000
- Missile Defense Agency–
- Defense Counterintelligence and Security Agency–
- Defense Intelligence Agency–
- National Geospatial-Intelligence Agency–
- National Reconnaissance Office–
- National Security Agency–
- United States Indo-Pacific Command375,000
- United States European Command85,500
- United States Special Operations Command70,000
- National Guard Bureau–
- United States Africa Command–
- United States Central Command–
- United States Northern Command–
- United States Southern Command–
- United States Transportation Command–