Who: Fidel Castro (Cuba's Leader), John F. Kennedy (U.S. President), CIA (Central Intelligence Agency)
What: Bay of Pigs, which was planned to overthrow the Cuban Leader, Fidel Castro, but it didn't end well because the U.S. was only able to some of the Cuban Air Force so the rest of it was able to gun down the attackers.
When: April 17, 1961
Where: Bay of Pigs, Cuba / US
Why: To overthrow the Cuban Government, mostly Fidel Castro, but the attack was terribly planned so they didn't complete their mission to overthrow the Cuban Government or Fidel Castro.