The 50 most expensive militaries in the world, ranked by defense budget

The US has the world's most expensive military, spending nearly $1 trillion on defense in 2025, over three times China's budget. Global military spending totaled $2.6 trillion in 2025, with the US accounting for over a third. President Donald Trump proposed increasing annual defense spending to $1.5 trillion, and NATO allies agreed to a target of 5% GDP defense spending by 2035.