3. Cuban Missile Crisis (1962)
During the Cuban Missile Crisis in October 1962, NATO was placed on high alert as the United States and the Soviet Union faced off over Soviet nuclear missiles stationed in Cuba. This confrontation tested NATO’s nuclear defense strategies and exposed divisions among member nations regarding the risks of escalation. The crisis underscored the delicate balance required to maintain peace and the importance of unity within the alliance during periods of heightened tension (history.com).
