Date of Birth: 
About Fermán Cienfuegos
- José Eduardo Sancho Castañeda, better known by his nom de guerre Fermán Cienfuegos (born 6 March 1947) was the leader of the Salvadoran organization Fuerzas Armadas de la Resistencia Nacional (National Resistance Armed Forces in English, part of Resistencia Nacional or RN).
- He was born in San José, Costa Rica.The RN was founded in 1975 as a split from the Ejército Revolucionario del Pueblo (ERP - People's Revolutionary Army) after an internal struggle within the ERP resulted in the assassination of a group of ERP leaders including famed Salvadoran poet Roque Dalton who advocated that the ERP should not have such a largely militarist focus and should do more organizing among the masses.
- In 1980, the RN was one of the five revolutionary Marxist organizations that formed the Farabundo Martí National Liberation Front that fought an armed struggle against the Salvadoran government.
- As the leader of the RN, Cienfuegos was one of the signatories of the 1992 Salvadoran peace accords.
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