The correct answer is B) the Bay of Pigs Invasion.
What hindered the cold war was the Bay of Pigs Invasion.
This happened when the United States government tried to overthrow Cuban leader Fidel Castro on April 17, 1961. The Central Intelligence Agency (CIA) had planned to introduce Cuban exiles into Cuba to start a Guerrilla war that deposed Castro's government. The invasion failed.
This invasion is considered to be part of the Cold World actions because the Soviet Union supported Fidel Castro and the United States always tried to stop the spread of Communism around the world.
