Some 1,000 people are estimated to have been killed by the Bolivian army and security forces in only 13 months.
He was an officer in the Bolivian army, reaching the rank of colonel.
Unit after unit of the Bolivian army were surrounded and destroyed.
Her body was then carried downstream and only recovered by the Bolivian army several days later on September 6.
The Bolivian army launched three attacks that stalled after seizing some parts of the stronghold.
When fighting began in the early spring of 1967 the guerrillas managed to stage numerous successful attacks against the Bolivian Army.
The Bolivian Army lost 23 officers from Major to General.
Banzer became increasingly involved in politics, siding with the right wing of the Bolivian Army.
Look, laddie, it takes the entire Bolivian Army to wipe out two gringos.
Ensuing a gunfight with the Bolivian army on 22 April 1967, he was wounded and taken prisoner.