United States
Wins 22/28
South Korea
Wins 6/28United States leads on 22 of 28 tracked categories.
United States holds the stronger Global Firepower rank (#1).
United States and South Korea are compared here on public military strength data, with United States holding the stronger Global Firepower rank over South Korea. The sharpest gap is in defense budget, United States at 954,000,000,000 versus 47,800,000,000.
Full data
Spec sheet
| United States | South Korea | |
|---|---|---|
| Overview | ||
| GFP power index | 0.0741 ✓ | 0.1642 |
| GFP rank | 1 ✓ | 5 |
| Economy | ||
| Defense budget (USD) | $954,000,000,000 ✓ | $47,800,000,000 |
| GDP (USD) | $30,769,700,000,000 ✓ | $1,872,375,000,000 |
| Defense spend, % of GDP (%) | 3.1 % | 2.6 % |
| Population | 341,963,408 ✓ | 51,111,158 |
| Personnel | ||
| Active personnel | 1,333,030 ✓ | 450,000 |
| Reserve personnel | 799,500 | 3,100,000 ✓ |
| Paramilitary | 0 | 120,000 ✓ |
| Nuclear | ||
| Warheads, total | 5,042 ✓ | 0 |
| Warheads, deployed | 1,770 ✓ | 0 |
| Nuclear status | Yes | No |
| Delivery legs | ICBM, SLBM, bomber | N/A |
| NPT status | signatory (nuclear-weapon state) | signatory (non-nuclear-weapon state) |
| First test year | 1945 | N/A |
| Air power | ||
| Total aircraft | 13,032 ✓ | 1,540 |
| Fighters | 1,791 ✓ | 242 |
| Attack aircraft | 926 ✓ | 98 |
| Transport aircraft | 917 ✓ | 40 |
| Helicopters | 5,913 ✓ | 827 |
| Attack helicopters | 1,024 ✓ | 113 |
| Land power | ||
| Tanks | 4,666 ✓ | 1,831 |
| Armored fighting vehicles | 409,660 ✓ | 117,460 |
| Self-propelled artillery | 1,521 | 2,780 ✓ |
| Towed artillery | 1,878 | 5,800 ✓ |
| Rocket artillery (MLRS) | 1,731 ✓ | 525 |
| Naval power | ||
| Total naval assets | 465 ✓ | 215 |
| Aircraft carriers | 11 ✓ | 0 |
| Submarines | 66 ✓ | 22 |
| Destroyers | 83 ✓ | 14 |
| Frigates | 0 | 18 ✓ |
| Corvettes | 27 ✓ | 3 |
| Patrol vessels | 0 | 96 ✓ |
Frequently asked questions
Which has more nuclear warheads, United States or South Korea? +
United States has more nuclear warheads, an estimated 5,042 in total stockpile.
Which has the bigger defense budget, United States or South Korea? +
United States has the bigger defense budget, at an estimated 954,000,000,000 USD.
Which has more tanks, United States or South Korea? +
United States has more tanks, an estimated 4,666 main battle tanks.
Which has a bigger air force, United States or South Korea? +
United States has more total aircraft, an estimated 13,032.
Which has a bigger navy, United States or South Korea? +
United States has more naval assets, an estimated 465 vessels.
Which has the higher Global Firepower rank, United States or South Korea? +
United States holds the stronger Global Firepower rank, at number 1 worldwide.
Where does this military comparison data come from? +
Sources: Global Firepower 2026, SIPRI 2025, FAS 2026, IMF. Figures are public estimates. Every figure is a public estimate, not classified data, and can vary between sources.
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Sources: Global Firepower 2026, SIPRI 2025, FAS 2026, IMF. Figures are public estimates.