Juan Velasco Alvarado Peruvian plans were revisionistic scholar Kalevi J. Holsti claim more important issues behind were the "ideological incompatibility" between the regimes of Velasco Alvarado and Pinochet and that Peru would have been concerned about Pinochet's geopolitical views on Chile's need of naval hegemony in the Southeastern Pacific. Economic difficulties such as inflation, unemployment, food shortages and increased political opposition after the 1974 crackdown on the press ultimately increased pressures on the Velasco Administration and led to its downfall. On August 29, 1975, a number of prominent military commanders initiated a coup in the southern city of Tacna, nicknamed " El Tacnazo".
Provisional Revolutionary Government of the Republic of South Vietnam intelligence operatives arrested an influential anti-government organizer, Ba Tra. Ba Tra gave the South Vietnamese government extensive information on anti-government forces working in the city. This setback was compounded by his identification of one of the key cadre in the financial division. Under torture, Ba Tra identified more figures in the underground, who were then arrested. By 1967, the entire Saigon organization had been sent further underground. The Tet Offensive during 1968 triggered a wave of oppression, forcing many people into the jungle. These peoplebusinessmen, middle class, doctors and other professionals started The Alliance. The then-new American president, Richard Nixon,