Trump Threatens NATO Exit Over Iran War Support

President Donald Trump threatened to withdraw the United States from NATO and relocate military bases following a perceived lack of allied support during a military campaign against Iran. The crisis peaked in April 2026, as Trump labeled the alliance a "paper tiger" and accused member states of "turning their backs on the American people" for refusing to provide overflight rights or naval forces to reopen the Strait of Hormuz.

Throughout the conflict, several Western European nations, including France, Spain, and Italy, restricted U.S. access to military bases and airspace. French President Emmanuel Macron and UK Prime Minister Keir Starmer resisted pressure to join the offensive, with Macron proposing a UN-led defensive mission instead. Trump further strained relations by renewing threats to annex Greenland, describing the territory as a "big, poorly run, piece of ice."

NATO Secretary General Mark Rutte attempted to mediate the rift through a series of White House meetings, praising Trump's leadership while acknowledging that some allies were "tested and failed." While Trump asserted that a rupture was "beyond reconsideration," legal analysts and U.S. lawmakers noted that a 2023 law prevents unilateral withdrawal without a two-thirds Senate majority or an act of Congress.

In response to U.S. unpredictability, European leaders began developing a "European NATO" contingency plan to ensure continental security and nuclear deterrence. This shift includes a commitment to raise defense spending to 5% of GDP by 2035. Despite the tensions, a fragile ceasefire between the U.S. and Iran was reached on April 8, though Trump continued to demand concrete military commitments from allies to secure shipping lanes.