Isla de la Juventud, Cuba
In 1954, Batista's government held presidential elections, but no politician standing against him; the election was widely considered fraudulent. It had allowed some political opposition to be voiced, and Castro's supporters had agitated for an amnesty for the Moncada incident's perpetrators. Some politicians suggested an amnesty would be good publicity, and the Congress and Batista agreed. Backed by the US and major corporations, Batista believed Castro to be no threat, and on 15 May 1955, the prisoners were released.