This Cuban Missile Crisis of 1962 in 1962 was one of the most dangerous times of the Cold War period, bringing about the world to the edge of a nuclear showdown. The event arose when the U.S. learned that the Soviet regime had placed nuclear missiles in the Caribbean island of Cuba, just approximately 90 miles from U.S. shores. https://articles.abilogic.com/698679/what-caused-cuban-missile-crisis.html