How did Peruvian military dictatorship vary from others in South America? Who were Somozas? What was their relationship to United States? Determine Sandinista National Liberation Front (FSLN)? Who were Contras? Which countries supported them? Distinguish the Farabundo Martí National Liberation Front (FMLN) with Sandinista National Liberation Front (FSLN). What occurred in 1981 at El Mozote? What does this incident illustrate?