Spain vs United States of America Military Comparison
Side-by-side military strength: active personnel, defense budgets, air force aircraft, and naval assets.
Spain
100K active troops
$10B budget
VS
United States of America
1M active troops
$800B budget
327
Tanks
6,612
2,040
Armored Vehicles
45,193
152
Artillery
2,837
0
Rocket Systems
1,366
139
Fighter Jets
1,957
164
Helicopters
5,400
46
Warships
472
3
Submarines
68
Nuclear Arsenal
United States of America
LARGEST
5,044
WARHEADS
Spain
NON-NUCLEAR
0
WARHEADS
Warheads Over Time
Estimated total warhead inventories — Federation of American Scientists / SIPRI
Defense Budget vs GDP
Historical defense spending and how it compares to each country's GDP. The % of GDP view normalises for economic size so smaller economies aren't drowned out by absolute dollar figures.
Defense Budget Over Time ($B)
Defense Budget as % of GDP
Source: World Bank Open Data API (MS.MIL.XPND.CD)
Military Active Personnel
United States of America
LARGEST
1.35M
TROOPS
Spain
8.9% OF LARGEST
120.35K
TROOPS
United States of America has 11.19× the active personnel of Spain
Air Force Total Aircraft
United States of America
LARGEST
13.3K
AIRCRAFT
Spain
3.9% OF LARGEST
522
AIRCRAFT
United States of America has 25.48× the aircraft of Spain
Total Naval Assets
Land Forces — Detailed Metrics
| Metric |
Spain
|
United States of America
|
|---|---|---|
| Active Personnel | 120,350 | 1,347,300 |
| Reserve Personnel | 15,150 | 799,500 |
| Total Military Personnel | 135,500 | 2,146,800 |
| Defense Budget (USD) | $14,900,000,000 | $816,000,000,000.0 |
| Tanks | 327 | 6,612 |
| Armored Vehicles | 2,040 | 45,193 |
| Self-Propelled Artillery | 96 | 1,498 |
| Towed Artillery | 56 | 1,339 |
| Rocket Projectors | 0 | 1,366 |
Air Force — Detailed Metrics
| Metric |
Spain
|
United States of America
|
|---|---|---|
| Total Aircraft | 522 | 13,300 |
| Fighters | 139 | 1,957 |
| Attack Aircraft | 87 | 2,800 |
| Transport Aircraft | 43 | 945 |
| Trainer Aircraft | 89 | 2,600 |
| Helicopters | 164 | 5,400 |
| Attack Helicopters | 18 | 983 |
Naval Forces — Detailed Metrics
| Metric |
Spain
|
United States of America
|
|---|---|---|
| Total Naval Assets | 46 | 472 |
| Aircraft Carriers | 1 | 11 |
| Destroyers | 0 | 73 |
| Frigates | 11 | 0 |
| Corvettes | 0 | 23 |
| Submarines | 3 | 68 |
| Patrol Vessels | 23 | 13 |
| Mine Warfare Vessels | 6 | 8 |
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