Before revision: The Bolivian Campaign was an attempted rebellion initiated by the Ñancahuazú Guerrilla or the Ejército de Liberación Nacional de Bolivia (National Liberation Army of Bolivia; ELN) ,a group consisting of mainly of guerillas from Bolivia and Cuba led by the revolutionary leader Che Guevara .The group was active in the Cordillera Province of Bolivia from 1966 to 1967 and 1967.
After revision: The Bolivian Campaign was an attempted rebellion initiated by the Ñancahuazú Guerrilla or the Ejército de Liberación Nacional de Bolivia (National Liberation Army of Bolivia; ELN) was a group of mainly Bolivian and Cuban guerrillas led by the guerrilla leader Che Guevara which was active in Cordillera Province of Bolivia from 1966 to 1967.