NATO Military Spending by Country: Top 5 Countries

2. United States

Military spending as share of GDP: 3.46%

The United States is the largest military spender in the world, with an estimated spending of around $821 billion in 2022 – which accounts for 40% of all global spending that year. It is also the biggest military contributor to NATO. However, in terms of military spending as a share of GDP, it falls second on the list for NATO countries. Washington’s military spending has fallen from 3.64% of GDP in 2020 to 3.46% in 2022 which has allowed Greece to take the top spot.