National Universitary Concentration

National Universitary Concentration (Spanish: Concentración Nacional Universitaria, abbrev. CNU) was a Third position terrorist group in Argentina. Founded in 1971, the CNU was based in the cities of Mar del Plata and La Plata. In complicity with the police and military, CNU carried out various murders and other acts of violence, which later legal proceedings considered to be the precursor of the Dirty War. According to its communique, the group adhered to Fascism and Peronism and dedicated itself to fighting Tendencia Revolucionaria and other leftist elements.

After the Argentine Anticommunist Alliance (also known as Triple A) was established in 1973, CNU was shortly incorporated into the now-infamous paramilitary before leaving in 1975, when Julio "Polaco" Dubchak was assassinated. When the government of Isabel Perón was overthrown on March 24, 1976, some CNU members began to cooperate with the extrajudicial task forces organized by the 1976-83 military dictatorship. A total of over 50 murders and other acts of violence have been attributed to the National Universitary Concentration. The group's main leaders were Carlos Alberto Disandro [es], Patricio Fernández Rivero, Ernesto Piantoni, Raúl Viglizzo, Gustavo Demarchi and Héctor Corres.