Military Strength: Japan vs South Korea
Overview
South Korea (ranked #6 globally) holds a stronger overall military position than Japan (#13) on the Global Military Index. South Korea fields 569,000 active troops — 2.2x Japan's 261,000, backed by 3,100,000 reserves and 3,013,500 paramilitary. Japan allocates $56B to defense compared to $43B for South Korea.
In the air, Japan operates 1,399 aircraft including 331 combat jets, while South Korea fields 1,543 with 314 fighters.
At sea, Japan's 155-ship navy matches South Korea's 155 vessels, including 25 and 22 submarines respectively. On the ground, Japan deploys 521 main battle tanks vs 2,236 for South Korea.
Neither Japan nor South Korea possesses nuclear weapons.
🇯🇵 Japan Global Military Index
| 🪖 Manpower (15%) | 77.8 | Active, reserve & paramilitary: 279360 effective |
| 🛡️ Ground Firepower (20%) | 60.4 | Main battle tanks: 521 |
| ⚓ Naval Power (20%) | 67.1 | Weighted by ship type: carriers, submarines, destroyers... |
| ✈️ Air Power (25%) | 67.9 | Weighted by aircraft type: combat, bombers, helicopters... |
| ☢️ Nuclear Deterrent (10%) | 0.0 | No declared nuclear capability |
| 💰 Defense Budget (10%) | 73.1 | $56.4B annual military spending |
🇰🇷 South Korea Global Military Index
| 🪖 Manpower (15%) | 92.4 | Active, reserve & paramilitary: 2954050 effective |
| 🛡️ Ground Firepower (20%) | 74.4 | Main battle tanks: 2236 |
| ⚓ Naval Power (20%) | 64.5 | Weighted by ship type: carriers, submarines, destroyers... |
| ✈️ Air Power (25%) | 68.7 | Weighted by aircraft type: combat, bombers, helicopters... |
| ☢️ Nuclear Deterrent (10%) | 0.0 | No declared nuclear capability |
| 💰 Defense Budget (10%) | 71.3 | $43.1B annual military spending |
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