Fidel Alejandro Castro Ruz (born August 13, 1926) is the current President of Cuba, though currently with his duties transferred. Castro led the revolution overthrowing Fulgencio Batista in 1959. Shortly thereafter, Castro was sworn in as the Prime Minister of Cuba. Castro became First Secretary of the Communist Party of Cuba in 1965, and led the transformation of Cuba into a one-party socialist republic. In 1976 he became president of the Council of State as well as of the Council of Ministers. He also holds the supreme military rank of Comandante en Jefe ("Commander in Chief") of the Cuban armed forces.