DefenseUnited States — Armed forces at a glance1,300,000Active personnel· 2024Personnel≈1,300,000Active personnel≈800,000ReservesLand≈2,500Main battle tanks≈38,000Armoured vehicles≈2,800Artillery piecesShow all 15 figures (+10 more)Source: IISS Military Balance 2024 · U.S. DoD · FAS/SIPRI· 2024ExploreSaveShareReport