US withdrawal from NATO requires either a two-thirds Senate vote or an act of Congress under a 2023 law, creating a high procedural barrier that has blocked formal exit despite repeated presidential criticism. In 2026, tensions peaked during the Iran conflict when European allies declined direct support for operations such as reopening the Strait of Hormuz, prompting threats of departure and references to NATO as a “paper tiger.” The administration has instead pursued troop reductions, canceled equipment deployments, and scaled back air and naval assets in Europe while pressing allies on defense spending. At the July 2026 Ankara summit, the president affirmed continued membership. Bipartisan congressional resistance and defense industry interests have limited further escalation, keeping any near-term formal withdrawal unlikely absent major shifts in Senate composition or alliance dynamics.
Résumé expérimental généré par IA à partir des données Polymarket. Ceci n'est pas un conseil de trading et ne joue aucun rôle dans la résolution de ce marché. · Mis à jourUS Senators urge Defense Department to reverse planned NATO force cuts
US Senators Michael Bennet, Joe Neguse, and Don Bacon sent a letter to Defense Secretary Pete Hegseth urging reconsideration of planned reductions in US military contributions to NATO, emphasizing the importance of the alliance and warning against creating vulnerabilities. This reflects strong congressional opposition to any US withdrawal from NATO.
No formal US notice of withdrawal from NATO issued by August 2026
December 31 dips to 2%1%
By late August 2026, despite ongoing troop withdrawals and military reductions, no official notice of denunciation under Article 13 of the NATO Treaty had been submitted by the US government. NATO and US officials continued to emphasize alliance commitments, leading to a further decline in market expectations for a US withdrawal within the year.




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