The Cuban revolution began when the poorly armed Cuban rebels, led by Fidel Castro, attacked the Moncada Barracks in Santiago de Cuba on 26 July 1953. The attack was easily defeated and most of the rebels were captured and later executed by the Batista regime. Although Fidel Castro had been sentenced to 15 years of prison, after less than two years he was released, he went to Mexico and in 1956, back in Cuba again, his guerilla group started a new rebellion.