sentences:  In July 1980, the "Grupo de Tareas Exterior" (GTE, External Operations Group) headed by Guillermo Suárez Mason, of the 601 Intelligence Battalion, took part in the Cocaine Coup of Luis García Meza in Bolivia, with the assistance of the Italian terrorist Stefano Delle Chiaie and Nazi war criminal Klaus Barbie.The Argentine secret services hired 70 foreign agents to assist in the coup.The cocaine trade helped fund the covert operations.