2026 military data comparison

Japan vs United Kingdom Military Power

Compare Japan and United Kingdom across 21 available personnel, equipment and spending indicators. MilitaryDex ranks Japan #16 and United Kingdom #11 in the 2026 edition.

Japan flag

Japan

12.7Strength Score

16 indicators higher

United Kingdom flag

United Kingdom

16.7Strength Score

5 indicators higher

Comparison at a glance

Higher MSS score

United Kingdom

12.7 vs 16.7

Indicators higher

165

0 tied

Global ranks

#16 / #11

of 145 profiles

Defense budgets

$58.0B

vs $88.5B

Category scorecard

Manpower300
Air force500
Navy401
Army and ground forces401
Financial and strategic003

Largest reported differences

Paramilitary: Japan

Japan 25,000 · United Kingdom 0

Aircraft carriers: United Kingdom

Japan 0 · United Kingdom 2

Estimated nuclear warheads: United Kingdom

Japan 0 · United Kingdom 225

Self-propelled artillery: Japan

Japan 193 · United Kingdom 14

Manpower

Active troops

251.5K
VS
141.3K

Reserve troops

56.0K
VS
31.9K

Paramilitary

25.0K
VS
0

Air force

Total aircraft

1.4K
VS
625

Fighter aircraft

217
VS
103

Attack aircraft

47
VS
38

Helicopters

583
VS
262

Attack helicopters

118
VS
50

Navy

Total naval assets

100
VS
59

Aircraft carriers

0
VS
2

Destroyers

41
VS
6

Submarines

23
VS
10

Frigates

8
VS
7

Army and ground forces

Tanks

734
VS
288

Armored vehicles

54.4K
VS
94.1K

Self-propelled artillery

193
VS
14

Towed artillery

480
VS
126

Multiple-launch rocket systems

99
VS
43

Financial and strategic

Defense budget

$58.0B
VS
$88.5B

Defense budget share of GDP

1.0%
VS
2.4%

Estimated nuclear warheads

0
VS
225

RELATED COMPARISONS

View Japan military profile View United Kingdom military profile