NATO faces US disengagement threat amid Middle East rift

NATO is facing renewed questions about its cohesion as concerns grow over the possibility of the United States stepping back from the alliance, a risk that has been sharpened by disagreements linked to the Middle East conflict. S. President Donald Trump’s criticism of allies for not joining a war on Iran, according to the source material. Officials and analysts cited in the account describe the moment as unusually tense for the transatlantic security pact.

Analysts say the alliance is under exceptional pressure , with Jim Townsend, a former Deputy Assistant Secretary of Defense for Europe and NATO, quoted as saying NATO is “closer to a break than ever.” The report frames the central issue as the credibility of U.S. commitment, and how quickly alliance confidence could weaken if Washington chose to reduce practical support even without a formal exit.

A formal U.S. withdrawal would face legal and political hurdles . The source notes that leaving NATO would require either a two-thirds Senate majority or an act of Congress, and it describes that outcome as unlikely at present. However, the same account emphasizes that Washington could still damage NATO’s effectiveness through steps that stop short of withdrawal.

Potential measures cited include limiting collective defense and reducing the U.S. footprint in Europe . The report lists scenarios such as not invoking Article 5 for collective defense, moving approximately 84,000 American troops out of Europe, closing military bases, and ending military coordination with allies. It says such actions would weaken NATO’s credibility and reduce its operational capacity, even if the alliance remained intact on paper.

European allies have responded by raising defense spending , reflecting concern about the reliability of U.S. security guarantees. Between 2020 and 2025, European NATO members increased defense spending by over 62 percent, according to the source. The report presents this as a significant shift, but not one that immediately replaces U.S. military weight.

Despite higher budgets, Europe is described as dependent on U.S. capabilities in several areas. The source lists deep strike, intelligence, surveillance, reconnaissance, space-based assets, logistics, and integrated air and missile defense as key functions where U.S. support remains central. It adds that closing these gaps is projected to take over a decade and require approximately $1 trillion.

Industrial constraints are also highlighted as a limiting factor . The report says European defense industries are struggling to speed up production and recruitment, complicating efforts to build capacity quickly. As a result, the near-term balance between political uncertainty and military readiness remains a core risk area for NATO’s deterrence posture, according to the account.