Barry Posen
Coverage of Barry Posen in the Nexus archive.
- Why NATO’s defense spending imbalance lasted for decades
For over three decades, the U.S. bore the largest share of NATO's military burden while many European allies underinvested in defense. The imbalance persisted due to post-Cold War optimism, domestic political priorities, and the U.S. security umbrella, but recent years have seen increased spending following Russia's 2022 invasion of Ukraine and pressure from President Donald Trump.
- Why NATO’s defense spending imbalance lasted for decades
For over three decades, the U.S. carried NATO's largest military burden while European allies underinvested in defense, citing post-Cold War optimism and the American security umbrella. Recent increases in spending followed Russia's 2022 Ukraine invasion and pressure from President Trump, ending a long-standing imbalance.