U.S. Military Intervention in Bolivia

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…uz Department. By late July 1967, three well-trained and well-equipped Bolivian Ranger battalions were ready for action. The army's increased capabilities and its decisive defeat of the legendary Cuban guerrilla leader enhanced its prestige. The fact that Barrientos' vice president, Luis Adolfo Siles Salines, a conservative civilian, had to request permission from the military high command to assume his mandate after Barrientos' death in April 1969 indicated how powerful the army had become as an institution.