Have any states left NATO?

Has Any Country Ever Left NATO?

Since its founding in 1949, NATO has grown from 12 founding members to over 30 nations united by a shared commitment to collective defense. Despite shifts in global politics and occasional domestic debates, no country has ever formally withdrawn from the alliance.

The idea of leaving NATO has been discussed in certain political circles, particularly during times of international tension or changes in national leadership. For instance, France famously withdrew from NATO’s integrated military command structure in 1966 under Charles de Gaulle, seeking greater strategic independence—though it remained a full political member and rejoined the military command decades later. This nuance is often mistaken for full withdrawal, but it wasn’t a departure from the alliance itself.

In recent years, speculation about potential exits has surfaced in countries like Hungary and Turkey, where leaders have at times questioned alignment with NATO’s policies. Still, as of 2026, none have taken steps to legally rescind their membership. The process for leaving is straightforward—Article 13 of the North Atlantic Treaty allows any member to notify the U.S. State Department of withdrawal—but it remains unused.

While internal disagreements occasionally strain cohesion, NATO’s core principle endures: an attack on one is an attack on all. This mutual defense pact continues to bind members, even amid evolving geopolitical landscapes. For now, the alliance stands intact, with no exits on record.