Coalition Strength: China + North Korea vs Japan + South Korea + United States
China + North Korea — 2 countries
Japan + South Korea + United States — 3 countries
| China + North Korea | Japan + South Korea + United States | |
|---|---|---|
| Combined ATLAS Index | 91.1 | 100.0 |
| Member states | 2 | 3 |
| Active military personnel | 3,315,000 | 2,073,050 |
| – Reserve troops | 1,110,000 | 3,962,600 |
| Military aircraft | 6,841 | 15,768 |
| – incl. combat aircraft | 3,413 | 3,733 |
| Military ships | 1,393 | 536 |
| – incl. aircraft carriers | 3 | 11 |
| – incl. submarines | 85 | 106 |
| Main battle tanks | 9,005 | 6,782 |
| Nuclear warheads | 680 | 5,042 |
| Combined defense budget | $283B | $1T |
Overview
China + North Korea groups 2 countries against 3 for Japan + South Korea + United States. China + North Korea fields 3,315,000 active troops combined vs 2,073,050 for Japan + South Korea + United States. Japan + South Korea + United States's combined $1T defense budget is 3.6:1 that of China + North Korea ($283B).
In the air, China + North Korea musters 6,841 military aircraft (3,413 combat) against 15,768 (3,733 combat) for Japan + South Korea + United States. At sea, the fleets total 1,393 ships for China + North Korea and 536 for Japan + South Korea + United States, including 85 and 106 submarines respectively. On the ground, China + North Korea deploys 9,005 main battle tanks vs 6,782 for Japan + South Korea + United States.
Both blocs hold nuclear weapons: China + North Korea's members maintain 680 warheads and Japan + South Korea + United States's hold 5,042.
Combined ATLAS Index
Country ranking →| Pillar | Weight | Score | Basis |
|---|---|---|---|
| Manpower | 10% | 100.0 | 5,820,000 effective |
| Ground forces | 20% | 99.0 | 9,005 main battle tanks |
| Naval power | 20% | 96.8 | 1,393 ships — the members' SEAS inventory power |
| Air power | 25% | 87.9 | 6,841 aircraft — the members' AIRS inventory power |
| Nuclear deterrent | 10% | 59.5 | 680 warheads |
| Defense budget | 15% | 86.2 | $283B combined, PPP-adjusted |
| Availability | modifier | ground ×1.13 · naval ×0.98 · air ×0.98 | Pooled budget per point of each force |
| Pillar | Weight | Score | Basis |
|---|---|---|---|
| Manpower | 10% | 100.0 | 4,962,810 effective |
| Ground forces | 20% | 100.0 | 6,782 main battle tanks |
| Naval power | 20% | 100.0 | 536 ships — the members' SEAS inventory power |
| Air power | 25% | 100.0 | 15,768 aircraft — the members' AIRS inventory power |
| Nuclear deterrent | 10% | 98.2 | 5,042 warheads |
| Defense budget | 15% | 100.0 | $1T combined, PPP-adjusted |
| Availability | modifier | ground ×1.18 · naval ×1.02 · air ×1.00 | Pooled budget per point of each force |
Combined scores treat each coalition as a single force: raw pillar values (troops, weighted equipment points, warheads, budgets) are summed across members and re-scored on the ATLAS Index scale. Alliance cohesion, geography and logistics are not modeled.
Forces by Domain
Member Forces
| Country | ATLAS | Troops | Aircraft | Ships | Budget |
|---|---|---|---|---|---|
| 🇨🇳 China ☢ | 90.0 | 2,035,000 | 5,662 | 1,000 | 99% |
| 🇰🇵 North Korea ☢ | 45.0 | 1,280,000 | 1,179 | 393 | 1% |
| Country | ATLAS | Troops | Aircraft | Ships | Budget |
|---|---|---|---|---|---|
| 🇺🇸 United States ☢ | 99.9 | 1,326,050 | 12,891 | 228 | 90% |
| 🇰🇷 South Korea | 60.1 | 500,000 | 1,576 | 150 | 4% |
| 🇯🇵 Japan | 51.9 | 247,000 | 1,301 | 158 | 6% |
Economy & Geography
| China + North Korea | Japan + South Korea + United States | |
|---|---|---|
| Population | 1.4 billion | 516.8 million |
| Combined GDP | $19.5 trillion | $37.1 trillion |
| GDP per capita | $13,605 | $71,739 |
| Defense share of GDP | 1.5% | 2.7% |
| Land area | 9,446,948 km² | 9,612,048 km² |
| Coastline | 16,995 km | 52,088 km |
| Coalition | Country | Status | Warheads | Deployed |
|---|---|---|---|---|
| China + North Korea | 🇨🇳 China | Active | 620 | 34 |
| China + North Korea | 🇰🇵 North Korea | Active | 60 | — |
| Japan + South Korea + United States | 🇺🇸 United States | Active | 5,042 | 1,770 |
Frequently Asked Questions
Who is stronger, China + North Korea or Japan + South Korea + United States?
On the combined ATLAS Index, Japan + South Korea + United States scores 100.0 against 91.1 for China + North Korea. The score aggregates each bloc's manpower, ground, naval, air, nuclear and budget pillars as if it fought as a single force — it ignores geography, cohesion and logistics, which decide real wars.
How many troops do China + North Korea and Japan + South Korea + United States have?
China + North Korea fields 3,315,000 active military personnel across 2 member states, plus 1,110,000 reserves. Japan + South Korea + United States fields 2,073,050 active personnel and 3,962,600 reserves.
How much do China + North Korea and Japan + South Korea + United States spend on defense?
Combined defense spending reaches $283B a year for China + North Korea and $1T for Japan + South Korea + United States, summing each member's latest reported military budget.
Who has more military aircraft, China + North Korea or Japan + South Korea + United States?
China + North Korea operates 6,841 military aircraft (3,413 combat aircraft), while Japan + South Korea + United States operates 15,768 (3,733 combat). Each member is counted at its most recent inventory year in the GlobalMilitary.net database.
Do China + North Korea or Japan + South Korea + United States have nuclear weapons?
Yes — both. China + North Korea's nuclear-armed members hold 680 warheads combined, against 5,042 for Japan + South Korea + United States. Only warheads owned by member states are counted; hosted weapons remain with their owner.