US dominance and scale differences
The US military budget exceeds $800 billion annually, larger than the next ten countries combined. China spends roughly $250-300 billion; Russia, despite its invasion of Ukraine, spends less than $100 billion. Japan, Germany, the UK, France, and India round out the top spenders, each in the $50-70 billion range. The absolute disparity reflects both the US economy size and deliberate policy to maintain military dominance.
These totals include personnel costs, equipment maintenance, operations, and procurement. They do not include veterans' benefits or nuclear weapons development in some countries, which would change comparisons. Transparency also matters: China's official military budget likely understates its actual defense spending.
GDP share and regional balances
Absolute spending masks relative commitment. The US spends roughly 3% of GDP on defense; Israel spends 4-5%; Russia historically spent 3-4% before the Ukraine invasion; China spends 1.5-2% of its smaller GDP. This means smaller countries can maintain military capability closer to their adversaries' by dedicating a higher share of resources.
Regional military balances reflect these choices: NATO's combined spending dwarfs Russia's, deterring direct invasion; Gulf states' high spending relative to GDP supports proxy conflicts in Yemen and Syria; East Asian tensions drive military buildups in South Korea, Taiwan, and Japan relative to China's slowly growing spending. Future balances depend both on absolute spending and on how efficiently nations translate spending into military capability.