U.S. Army War College

NATO's eastern flank countries are accelerating defense spending to counter Russian threats amid pressure from President Donald Trump, while Western European economies face challenges in meeting new defense benchmarks. Eastern European members like Poland, Romania, and the Baltic states are prioritizing military upgrades, with NATO aiming for 5% GDP defense spending by 2035.

NATO faces a growing 'commitment gap' as the U.S. shoulders most defense responsibilities, despite allies increasing budgets. Retired Lt. Gen. Keith Kellogg criticizes the alliance's expansion without military capacity, while others argue NATO remains central to U.S. security. Trump's troop withdrawal from Germany and pressure on allies highlight tensions.