The Bay of Pigs invasion significantly worsened US-Cuba relations during the Cold War. The failed invasion attempt by Cuban exiles, backed by the US government, solidified Fidel Castro's rule in Cuba and pushed the country closer to the Soviet Union, leading to heightened tensions and the eventual Cuban Missile Crisis.
The invasion was intended to overthrow the communist government of Fidel Castro, but its failure embarrassed the United States and led to a deterioration of US-Cuban relations. Castro used the failed invasion to consolidate his power and strengthen his relationship with the Soviet Union, which would later place nuclear missiles in Cuba, leading to the Cuban Missile Crisis in 1962. This event was a clear demonstration of the lengths to which the US would go to prevent the spread of communism in the Western Hemisphere, and it had lasting implications for the Cold War dynamic between the US, Cuba, and the Soviet Union.