Japanvs United Kingdom
On Global Firepower's 2026 index, Japan (#7) holds a narrow edge over the United Kingdom (#8).
- The United Kingdom has nuclear weapons; Japan has none.
- The United Kingdom has aircraft carriers; Japan has none.
- Japan fields 6.8× as many destroyers.
Who leads in each area
- People and moneyJapan leads 3 of 4
- Land forcesJapan leads 4 of 5
- Air powerJapan leads 7 of 7
- Naval forcesJapan leads 5 of 7
- Nuclear weaponsUnited Kingdom 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
$89.0B252K
Active personnel
141K56K
Reserves
32K25K
Paramilitary
0Spending is SIPRI's 2025 estimate in US dollars (Japan: 1.4% of GDP; United Kingdom: 2.4% of GDP).
Land forces
Armour and artillery: the weight an army can put on the ground.
734
Tanks
28854K
Armored vehicles
94K193
Self-propelled artillery
14480
Towed artillery
12699
Rocket artillery
43Air power
Fixed-wing and rotary aircraft across all branches.
1,429
Total aircraft
625217
Fighters
10347
Attack aircraft
38583
Helicopters
262118
Attack helicopters
5010
Tankers
953
Transports
30Naval forces
Hull counts, from carriers down to patrol boats.
158
Total fleet
1160
Aircraft carriers
24
Helicopter carriers
023
Submarines
1041
Destroyers
68
Frigates
70
Corvettes
0Nuclear weapons
Estimated warheads in military stockpiles, January 2026.
0
Warheads
2250
Deployed warheads
120Compare other countries
Related matchups
- ChinavsJapan
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- JapanvsRussia
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Profiles: Japan and United Kingdom. Sources: Global Firepower 2026, SIPRI Military Expenditure 2025 (Apr 2026), SIPRI Yearbook 2026: World Nuclear Forces.