sentences:  Operation Charly was executed by a group of military figures who had already taken part in Operation Condor, which had started as soon as 1973 and concerned international cooperation between intelligence agencies to permit greater repression of the left-wing opposition.US journalist Martha Honey documented the exportation of "social control techniques" which the Argentine army had "brutally perfected" in Argentina to Central American countries.Among the counter-insurgency tactics exported to Central America by Argentina within the framework of Operation Charly, were the systemic use of torture, death squads and forced disappearances — a US embassy cable spoke of the "tactics of disappearance".