 Both the extreme right and the left now disagreed with the government and increased political violence quickly turned into a civil war.The initially poorly trained Salvadoran Armed Forces (ESAF) also engaged in repression and indiscriminate killings, the most notorious of which was the El Mozote massacre in December 1981.The United States supported the government, and Cuba and other Communist states supported the insurgents now organized as the Farabundo Martí National Liberation Front (FMLN).