The Cuban Missile Crisis nearly led to nuclear war. The crisis occurred during the Cold War, a time of arms races and tension between the United States and Soviet Union. Following the failed Bay of Pigs invasion, the Soviet Union placed medium-range missiles in Cuba. After the United States discovered the missiles, a 13 day standoff and debate began. The crisis ended diplomatically, with a compromise. Overall, it was a success, as it led to the improvement of communications and diplomacy between the two superpowers.
Getty Images. Flags of Soviet Union and USA. https://www.thoughtco.com/thmb/3rIgDDYkLUatm4ez-ltJ-vQo0yU=/768x0/filters:no_upscale():max_bytes(150000):strip_icc():format(webp)/grungy-flags-of-soviet-union-and-usa-184282094-58ea6e355f9b58ef7ef424b3.jpg.