Following the resolution of WWII in 1945, the United States and Soviet Union entered into the Cold War, a period of fierce debate between both nations. One of the most prominent disputes and the precursor to the Cuban Missile Crisis was the Bay Of Pigs invasion, which occured in 1961. The US prepped Cuban revolutionaries who wanted to take the country back from Communist leader Fidel Castro. Unfortunately, it failed and caused the diplomacy between the two nations to fail, causing Cuba to turn to the USSR for help.