Jose de San Martin, Simon Bolivar and Toussiant L'Ouverture were all leaders in South America for independence from European colonizers. So leave it to be Nopoleon was NOT a leader in South America.
The correct answer is Bay of Pigs
It happened in April 1961, and Kennedy became the president in January of 1961.It was basically an intervention in Cuba that didn't end so well for the US since the Cubans won.