The Maoists left the Communist Party and the Socialist Party group of students. At the same time, since World War II, there were some minor Trotskyist formations and minor left-libertarian groups, which also had a discrete ideological influence in the student movement in Santiago and Concepción. The group led by Miguel Enríquez, temporarily allocated in the cell "Espartaco" at the Socialist Party, called itself the "Revolutionary Socialists" faction. It was formed by Miguel and Marco Antonio Enríquez, B. Van Schouwen, Marcello Ferrada de Noli (a left libertarian and then the leader of the socialist cell "Espartaco" in Concepción), and Jorge Gutiérrez.