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United States — Military File
Rankings · Power · Military

United States — Military File

Armed forces, personnel, equipment, deployments: the complete military file on United States.

Active personnel (est.)1,280,000
World rank by personnel#4 / 162

Magna assessment

POWER 90.0/100 — The Magna Power score is our 0–100 composite of structural national power — five dimensions, 100+ indicators. It is the Bureau's own assessment, not a mirror of World Bank or CIA figures.

Momentum +6 — Quarterly momentum: the Bureau's read on the country's trajectory over the last quarter, from −10 (deteriorating fast) to +10 (accelerating).

Late September concentrated the quarter's signal: the Trump–Xi summit brought mutual tariff relief and a trade truce running to January 2027, while the $15B Mesabi steel-mill announcement underscored the industrial bet.

The other edge of the same blade: the Canada tariff escalation showed the protectionist reflex intact — momentum is positive, but it was bought with friction.

Armed forces

United States Armed Forces (aka US Military): US Army (USA), US Navy (USN; includes US Marine Corps or USMC), US Air Force (USAF), US Space Force (USSF); US Coast Guard (USCG); National Guard (Army National Guard and Air National Guard) (2025)

Personnel strength

approximately 1.28 million active duty Armed Forces (450,000 Army; 334,000 Navy; 317,000 Air Force; 10,000 Space Force; 168,000 Marine Corps); 42,000 Coast Guard) (2025)

Equipment

the US military's inventory is comprised almost entirely of domestically produced weapons systems (some assembled with foreign components) along with a smaller mix of imported equipment from a variety of countries such as Germany and the UK; the US defense industry is capable of designing, developing, maintaining, and producing the full spectrum of weapons systems; the US is the world's leading arms exporter (2025)

Service age & obligation

17 years of age (under 18 with parental consent) for voluntary service for men and women; maximum enlistment age varies by service; 8-year initial service obligation, including 2-5 years active duty depending on the particular military service (2025)

Deployments

the US has approximately 200,000 military personnel deployed overseas on a permanent or a long-term rotational (typically 3-9 months) basis (2025)

Note

the US military's primary missions are to deter potential enemies, provide for the defense of the US, its Territories, Commonwealths and possessions, and any areas occupied by the US, and to protect US national interests; its responsibilities are worldwide and include providing humanitarian assistance, participating in international military exercises and operations, conducting military diplomacy, and fulfilling the US's alliance and treaty commitments; the US has been a leading member of NATO since the Alliance's formation in 1949 the US military has a global presence; the separate services operate jointly under 11 regional or functionally based joint service "combatant" commands: Africa Command; Central Command, Cyber Command, European Command, Indo-Pacific Command, Northern Command, Southern Command, Space Command, Special Operations Command, Strategic Command, and Transportation Command Congress officially created the US military in September 1789; the US Army was established in June 1775 as the Continental Army; after the declaration of independence in July 1776, the Continental Army and the militia in the service of Congress became known collectively as the Army of the United States; when Congress ordered the Continental Army to disband in 1784, it retained a small number of personnel that would form the nucleus of the 1st American Regiment for national service formed later that year; both the US Navy and the US Marines were also established in 1775, but the Navy fell into disuse after the Revolutionary War, and was reestablished by Congress in 1794; the first US military unit devoted exclusively to aviation began operations in 1913 as part of the US Army; the Army Air Corps (AAC) was the US military service dedicated to aerial warfare between 1926 and 1941; the AAC became the US Army Air Forces in 1941 and remained as a combat arm of the Army until the establishment of the US Air Force in 1947 (2025)

Related

Power indexMilitary indexLargest armiesUnited States — FactbookUnited States — RankingsLeader: United States

Across the Bureau

United States — Country ProfileDid United States acquire B-21 Raider stealth bomber?Did United States acquire Columbia-class ballistic-missile submarines?Who won the last election in United States?What are the main airports of United States?History of United States — TimelineDonald J. Trump — Leader of United StatesUnited States Ranking — Magna Country Rankings