Prague dispatched delegates to the Eighth Congress of the PSP in August 1960. Speaking at the gathering, the Cuban communist leader, Blas Roca Calderio, effectively offered his stamp of approval to Castro before the Czechoslovakian guests, recognizing him as a “new phenomenon in Latin America’s history.” In their comments, the Czechoslovaks demonstrated their satisfaction with the deepening influence of the Cuban communists within the country’s socio-political transformations, which held the serious potential to increase the significance of the Cuban revolution in the eyes of the Soviet Union and the other Socialist states.

After talking with the member of the PSP's Central Committee, Severo Aguirre, Prague’s Communist Party leaders saw a glimmer of hope for the further radicalization of the revolution:  the fact that the “bourgeois” leaders of the revolutionary army, the Castro brothers, and Ernesto “Che” Guevara, relied on the people’s army, on which the communists had significant influence.

The Cuban communists asked the Soviets for help exposing the government's “terror” and the interference of “American imperialism” in Cuba’s affairs. The CPSU’s Central Committee agreed to support the fight of the Cuban people in the press, radio, and public organizations in the closing months of 1958.

Aragones discusses a recent speech by Che Guevara to young communists of the Ministry of Industry. He expresses a strong opinion that Guevara's speech was ultimately unclear and unsuccessful.

Hungarian Ambassador to Cuba János Beck reports on Cuban-Soviet divergence after the Cuban Missile Crisis. Cuba’s divergence includes other socialist countries, while preserving a special relationship with Czechoslovakia. Beck offers criticism of Cuba’s leadership, politics, and independent stance, but along with the Soviet Union reinforces that Cuba is true to the revolution.

In a top secret report, Hungarian Ambassador to Cuba János Beck describes a recent meeting with Cuban President Osvaldo Dorticos. Beck divides the conversation among five categories—agriculture, industry, central planning, counter-revolutionary activities, and the party. Dorticos reports improvements and obstacles (e.g. agricultural production is developing, though slowly, and the growth of the party remains in its initial stages of formation).

Ambassador János Beck reports on Foreign Minister Péter Mód’s visit to Cuba, and with whom he met. The report is divided among four different official meetings: Foreign Minister Raul Roa, Prime Minister Fidel Castro, Carlos Rafael Rodriguez, and the Integrated Revolutionary Organizations (ORI). Beck summarizes each meeting separately. Topics include Cuba’s expectation of a US invasion and the US’s current clandestine activities, Organization of American States (OAS) and its use as a political tool in US-Latin American relations, Sino-Soviet relations, socialist unity and the importance of Soviet trade, Cuba’s perceived Soviet military advantage over the US, and the Communist Party’s development/popularity in Cuba. Many of these topics appear in various meetings outlined in the report.

Todor Zhivkov reports his impressions of his recent visit to Cuba. The report is a rough outline of topics ranging from advancements in the Cuban revolution since 1959 to prospective ways to improve Bulgarian-Cuban relations. In the report Zhivkov presents his assessment of the Cuban Communist Party congress. Party documents show a maturing understanding of Marxism-Leninism and a new clarity in the Cuban Communist Party as a whole. Zhivkov’s report includes examples of Cuba’s self-criticism and Zhivkov’s own criticism of Cuba’s leadership. Some topics of discussion include: cultural and economic specialist exchanges, the price of sugar, Cuba’s increased collaboration with Soviet Union and other socialist nations, and economic subsidies and aid.

In a secret supplement to information from the VIII Congress of the People's Socialist Party, Bulgarian delegates Abramov and Tellalov summarize answers that Blas Roca, the Cuban delegation head, provided the congress. Roca claimed that socialism is the end goal of the revolution, but it is not publicly discussed. He explained the Communist party's involvement in the revolution and July 26th Movement. Abramov and Tellalov also describe the reestablishment of relations and disagreements between Cuba and Yugoslavia, including discussions about weapons. Fidel Castro met with socialist country representatives and described Cuba's plans to nationalize enterprises, particularly American. During the congress Castro described the evolution of the July 26th Movement and the consolidation of Communism in Cuba. Abramov and Tellalov endorse Castro's leadership and review the Cuban military's strengths and weaknesses. There is a brief mention Sino-Soviet relations.

The 3rd Plenum of the Cuban Communist Party took place in Havana on 24-26 January 1968. During the Plenum the decision of the Politburo of the CC was announced not to participate in the consultative meeting in Budapest. Fidel Castro held a 12-hour long speech.