Japan vs Spain Military Comparison
Side-by-side military strength: active personnel, defense budgets, air force aircraft, and naval assets.
Japan
200K active troops
$50B budget
VS
Spain
100K active troops
$10B budget
579
Tanks
327
3,137
Armored Vehicles
2,040
658
Artillery
152
99
Rocket Systems
0
297
Fighter Jets
139
622
Helicopters
164
155
Warships
46
22
Submarines
3
Nuclear Arsenal
Japan
NON-NUCLEAR
0
WARHEADS
Spain
NON-NUCLEAR
0
WARHEADS
Estimated total warhead inventories — Federation of American Scientists / SIPRI
Defense Budget vs GDP
Historical defense spending and how it compares to each country's GDP. The % of GDP view normalises for economic size so smaller economies aren't drowned out by absolute dollar figures.
Defense Budget Over Time ($B)
Defense Budget as % of GDP
Source: World Bank Open Data API (MS.MIL.XPND.CD)
Military Active Personnel
Japan
LARGEST
247.15K
TROOPS
Spain
48.7% OF LARGEST
120.35K
TROOPS
Japan has 2.05× the active personnel of Spain
Air Force Total Aircraft
Japan
LARGEST
1.45K
AIRCRAFT
Spain
36.0% OF LARGEST
522
AIRCRAFT
Japan has 2.78× the aircraft of Spain
Total Naval Assets
Land Forces — Detailed Metrics
| Metric |
Japan
|
Spain
|
|---|---|---|
| Active Personnel | 247,150 | 120,350 |
| Reserve Personnel | 56,000 | 15,150 |
| Total Military Personnel | 303,150 | 135,500 |
| Defense Budget (USD) | $49,100,000,000 | $14,900,000,000 |
| Tanks | 579 | 327 |
| Armored Vehicles | 3,137 | 2,040 |
| Self-Propelled Artillery | 166 | 96 |
| Towed Artillery | 492 | 56 |
| Rocket Projectors | 99 | 0 |
Air Force — Detailed Metrics
| Metric |
Japan
|
Spain
|
|---|---|---|
| Total Aircraft | 1,449 | 522 |
| Fighters | 297 | 139 |
| Attack Aircraft | 287 | 87 |
| Transport Aircraft | 192 | 43 |
| Trainer Aircraft | 447 | 89 |
| Helicopters | 622 | 164 |
| Attack Helicopters | 119 | 18 |
Naval Forces — Detailed Metrics
| Metric |
Japan
|
Spain
|
|---|---|---|
| Total Naval Assets | 155 | 46 |
| Aircraft Carriers | 4 | 1 |
| Destroyers | 36 | 0 |
| Frigates | 10 | 11 |
| Corvettes | 6 | 0 |
| Submarines | 22 | 3 |
| Patrol Vessels | 6 | 23 |
| Mine Warfare Vessels | 22 | 6 |
See economy, trade, demographics, and more for this comparison.
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Data compiled from World Bank, IMF, Global Firepower, SIPRI, Numbeo, and Pew Research.
Last updated June 2026.
Sources & methodology