Previously , he had been a revolutionary who assisted Fidel Castro , Che Guevara and other members of the 26th of July Movement ( M-26-7 ) in successfully overthrowing the dictatorship of Fulgencio Batista as part of the Cuban Revolution .
He was best known as a revolutionary who assisted Fidel Castro , Che Guevara and other members of the 26th of July Movement ( M-26-7 ) in removing the dictatorship of Fulgencio Batista as part of the Cuban Revolution .