The coalition was formed to oppose the National Conciliation Party, the military controlled political party which controlled El Salvador. UNO ran in the presidential elections of 1972 and 1977. The elections were rigged however and despite sources claiming that UNO won both elections, official reports stated that the PCN won both elections.[1][2][3]
^Herman, Edward S. and Frank Brodhead (1984) Demonstration elections: U.S.-staged elections in the Dominican Republic, Vietnam, and El Salvador Boston: South End Press, p102
^Williams, Philip J. and Knut Walter (1997) Militarization and demilitarization in El Salvador's transition to democracy Pittsburgh: University of Pittsburgh Press, pp. 80-81