Side-by-side military and economic comparison. White/black is United Kingdom, red is Japan.
🏳️ United Kingdom
🇯🇵 Japan
Fleet Modernity — Quality, Not Just Count
ADVANCED
✈️ Air Fleet
MODERN
ADVANCED
🛡️ Armor Fleet
MODERN
LIKELY MODERN
⚓ Naval Fleet
LIKELY MODERN
Leads More Categories
★ Japan
United Kingdom wins 1 of 6 · Japan wins 4 of 6
Manpower
★ Japan
Financials
Tied
Airpower
★ Japan
Land Power
★ Japan
Naval Power
★ Japan
Strategic
★ United Kingdom
Manpower
68,000,000
👥 Total Population
124,000,000 ★
185,000
🪖 Active Personnel
247,000 ★
★ 80,000
🎖️ Reserve Personnel
56,000
n/a
👮 Paramilitary Forces
n/a
Financials
★ $75B
💰 Defense Budget
$53B
$3,600B
📈 GDP (Nominal)
$4,200B ★
Airpower
630
✈️ Total Aircraft
1,450 ★
140
🛩️ Fighter Aircraft
240 ★
490
🛫 Bombers & Other Aircraft
1,210 ★
n/a
🚁 Helicopters (Total)
n/a
Land Power
220
🛡️ Tank Strength
1,000 ★
n/a
🚚 Armored Vehicles
n/a
n/a
💥 Towed Artillery
n/a
Naval Power
60
⚓ Fleet Strength
155 ★
10
🌊 Submarines
24 ★
★ 2
🛳️ Aircraft Carriers
0
Strategic
★ 225
☢️ Nuclear Warheads
None declared
Figures are educated estimates or formula-modeled, not sourced intelligence. Team totals are simple sums. Want a different matchup? Use the interactive Compare tool.