Japanvs United States
On Global Firepower's 2026 index, the United States (#1) holds a solid edge over Japan (#7).
- The United States has nuclear weapons; Japan has none.
- The United States has aircraft carriers; Japan has none.
- The United States spends 15× as much on its military.
Who leads in each area
- People and moneyUnited States leads 3 of 4
- Land forcesUnited States leads 5 of 5
- Air powerUnited States leads 7 of 7
- Naval forcesUnited States leads 6 of 7
- Nuclear weaponsUnited States leads 2 of 2
Leads count raw numbers in each category. Larger is not always stronger: a modern fleet can beat a bigger, older one.
People and money
Who can be put in uniform, and how much is spent keeping them there.
$62.2B
Military spending
$954B252K
Active personnel
1.33M56K
Reserves
800K25K
Paramilitary
0Spending is SIPRI's 2025 estimate in US dollars (Japan: 1.4% of GDP; United States: 3.1% of GDP).
Land forces
Armour and artillery: the weight an army can put on the ground.
734
Tanks
4,66654K
Armored vehicles
410K193
Self-propelled artillery
1,521480
Towed artillery
1,87899
Rocket artillery
1,731Air power
Fixed-wing and rotary aircraft across all branches.
1,429
Total aircraft
13,032217
Fighters
1,79147
Attack aircraft
926583
Helicopters
5,913118
Attack helicopters
1,02410
Tankers
61053
Transports
917Naval forces
Hull counts, from carriers down to patrol boats.
158
Total fleet
4650
Aircraft carriers
114
Helicopter carriers
923
Submarines
6641
Destroyers
838
Frigates
00
Corvettes
27Nuclear weapons
Estimated warheads in military stockpiles, January 2026.
0
Warheads
3,7000
Deployed warheads
1,770Compare other countries
Related matchups
- United StatesvsChina
- United StatesvsRussia
- ChinavsJapan
- United StatesvsIran
- United StatesvsNorth Korea
- JapanvsSouth Korea
- JapanvsRussia
- North KoreavsJapan
Profiles: Japan and United States. Sources: Global Firepower 2026, SIPRI Military Expenditure 2025 (Apr 2026), SIPRI Yearbook 2026: World Nuclear Forces.