2026 military data comparison
United Kingdom vs Japan Military Power
Compare United Kingdom and Japan across 21 available personnel, equipment and spending indicators. MilitaryDex ranks United Kingdom #11 and Japan #16 in the 2026 edition.
United Kingdom
16.7Strength Score
5 indicators higher
Japan
12.7Strength Score
16 indicators higher
Comparison at a glance
Higher MSS score
United Kingdom
16.7 vs 12.7
Indicators higher
5–16
0 tied
Global ranks
#11 / #16
of 145 profiles
Defense budgets
$88.5B
vs $58.0B
Category scorecard
Manpower0 – 0 – 3
Air force0 – 0 – 5
Navy1 – 0 – 4
Army and ground forces1 – 0 – 4
Financial and strategic3 – 0 – 0
Largest reported differences
Paramilitary: Japan
United Kingdom 0 · Japan 25,000
Aircraft carriers: United Kingdom
United Kingdom 2 · Japan 0
Estimated nuclear warheads: United Kingdom
United Kingdom 225 · Japan 0
Self-propelled artillery: Japan
United Kingdom 14 · Japan 193