🇺🇸 United States vs United Kingdom 🇬🇧
Power Index: #1 (99.1) vs #7 (72.38)
Our composite model gives United States a 66% edge in a hypothetical full-scale war against United Kingdom, weighing aviation, armor, fleets and budgets.
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| United States | United Kingdom | |
|---|---|---|
| 1,340,150 | Active personnel | 141,100 |
| 804,800 | Reserve forces | 70,450 |
| $997.3 billion | Defense budget | $81.8 billion |
| 4,650 | Main battle tanks | 227 |
| 3,368 | Combat aircraft | 145 |
| 867 | Attack helicopters | 40 |
| 11 | Aircraft carriers | 2 |
| 104 | Destroyers & frigates | 11 |
| 68 | Submarines | 10 |
| 3,700 | Nuclear warheads | 225 |
⚠ Both countries possess nuclear weapons. Any direct conflict would carry a high risk of nuclear escalation, which conventional force comparisons cannot capture.
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Modeled outcome is a statistical illustration from open force data — see how the model works. Real wars depend on doctrine, terrain, logistics, morale and alliances.