Civil war broke out in Guatemala when numerous leftist and agrarian groups took up arms in 1960 in face of the repression from the conservative regime of Carlos Castillo Armas. The Armas regime came to power in 1954 following a CIA-backed coup against the leftist government of Jacobo Arbenz. The main rebel umbrella was the Guatemalan National Revolutionary Unity (URNG). During the civil war numerous counts of genocide and mass disappearances occurred. In the late 1980s, when a civilian government came to power, the URNG changed tactics when releasing that they wouldn’t come to power through armed conflict. The war came to an end on December 29, 1996, and since then URNG converted to an official political party.