Ejército Guerrillero de los Pobres
The rolling-back of the progressive policies of the civilian governments resulted in a series of leftist insurgencies in the countryside, beginning in 1960. This triggered the 36-year Guatemalan Civil War between the U.S.-backed military government of Guatemala and the leftist insurgents, who frequently had a large degree of popular support. The largest of these movements was led by the Guerrilla Army of the Poor, which at its largest point had 270,000 members. During the civil war, atrocities against civilians were committed by both sides; 93% of these violations were committed by the U.S.-backed military, which included a genocidal scorched-earth campaign against the indigenous Maya population in the 1980s. The violence was particularly severe during the presidencies of Ríos Montt and Lucas García.