How was the CIA involved in the Bolivian operation against Che Guevara?

In the operation against Che Guevara in Bolivia, the Central Intelligence Agency (CIA) provided critical support to the Bolivian military. Specifically, the guerrilla group led by Guevara was tracked and eventually nearly annihilated on October 8, 1967, by a special detachment of the Bolivian army that was aided by CIA advisers.12

Following this engagement, the wounded Guevara was captured and subsequently executed. The involvement of the CIA and the subsequent treatment of his remains—including the removal of his hands for fingerprint identification—marked the end of his revolutionary efforts in the region.12