NATO estimates show Poland spent the highest percentage of its GDP on defense and was the only country estimated to spend more than 4%. Estonia and Latvia followed, each allocating around 3.4%. The United States, by comparison, was estimated to spend 3.2% of its (much larger) GDP on defense.

President Donald Trump confirmed that NATO allies had agreed to increase defense spending targets to 5% of their GDP by 2035, adding more than one trillion dollars a year to the budget. The historic move comes against a backdrop of tensions in the Middle East and ongoing war between Ukraine and Russia.