Local residents move their belongings before an assault by the Atlacatl Battalion as soldiers advance in pursuit of guerrillas from the Frente Farabundo Martí para la Liberación Nacional, Farabundo Martí National Liberation Front, FMLN, in Tenancingo, El Salvador, September 27, 1983. Residents would eventually return to their homes and farms. The country was engaged in a twelve-year civil war between successive authoritarian regimes, backed by the United States, and the FMLN guerrilla coalition. The conflict would claim over 75,000 lives before peace negotiations concluded in 1992.