CIA plot in 1961 to overthrow Fidel Castro by training Cuban exiles to invade and supporting them with American air power. The mission failed and became a public relations disaster early in John F. Kennedy's presidency.

It is known generally as the Bay of Pigs, for the location in Cuba where the attempted invasion took place.
Because it is and it happened

The Bay of Pigs Invasion happened in 1961.

Critics of the Bay of Pigs invasion claimed it was a violation of the?

The Bay of Pigs invasion that President Kennedy authorized took place in Cuba.