The head of CPCz’s international department and Aldo Flores, a member of the PCB Central Committee discuss Cuban-sponsored guerrilla warfare in Bolivia. Flores described several years of close collaboration between the Bolivian and Cuban communist parties for the training of guerrilla groups in Bolivia, which had recently gone awry as "Cuban officials built their own organization in Bolivia, composed entirely of their own people."

PCB Politburo member Jorge Kolle Cueto asks on 7 March 1967 to inform the Czechoslovak Communist Party, "on behalf of the CC of the Bolivian CP," regarding "the situation in Bolivia… and his recent meeting with Fidel Castro." After four pages of discussion regarding the depressing internal political situation under 1964 coup leader, General René Barrientos, Kolle announced that "the party must necessarily prepare for the possibility of armed struggle in order to participate in the attempt to overthrow the current regime together with other leftist forces."

In a conversation with the head of the CPCz international department in May 1963, PCB First Secretary Mario Monje reveals the extent of his party’s modus vivendi with Paz Estenssoro’s governing Revolutionary Nationalist Movement (MNR). According to Monje, the Bolivian president was "heavily involved" with Operation Matraca, an ongoing Cuban-sponsored guerrilla operation targeting the military governing in neighboring Peru.

Report on the political situation in Bolivia: President Torres takes steps to consolidate his presidential power

Comrade Josef Houska submits a document concerning issues related to cooperation with the Cuban intelligence service especially the Operation MANUEL to the Central Committee of the Communist Party of Czechoslovakia. The Operational MANUEL started in 1962 when the Cuban intelligence asked the Czechoslovak resident in Havana to arrange a transit through Prague for Venezuelan nationals who underwent guerrilla training in Cuba. In 1964 talks were held between Cuban and Czechoslovak intelligence services but no formal agreement of the tasks and responsibilities was concluded between the two. The Soviet government was informed about the Operation MANUEL and stated its agreement with the project. Houska says that the main objective of the operation is the education and training of revolutionary cadres from Latin America and the organization of combat groups. Participants of the operation were not confined to cadres from among the ranks of communist parties but also included members from various nationalist and anti-American groupings. The routes of individual participants in the operation were determined by the Cuban intelligence service who mainly directed the Operation MANUEL. Houska says problems that arisen in the course of the operation were solved in collaboration with Cuban and the Soviet authorities. The document cautioned about counter-espionage institutions' increasing interests in the operation and the fact that the US intelligence service agents were among the operation participants. Houska says refusal to offer assistance would have a negative impact on Cuba and Czechoslovakia would lose control over the operation.