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.

Zhivkov lays out his perspective on the place of Bulgaria within the Communist Camp. He also talks about the Balkans and the rift between Bulgaria and Romania. Both leaders discuss the Chinese accusations of Soviet Revisionism. Raul Castro talks about the strength of the communist movements in Latin America and the prospects for successful social revolutions in Venezuela, Chile, Costa Rica, Uruguay, and Brazil.

The ambassador gives an assessment of the Cuban domestic and foreign policy. He characterizes Fidel Castro as an adventurer and points to certain communist party decisions that are incompatible with the Marxist-Leninist doctrine.

Conversation for the record between Zhivkov and Castro during a four-day-long state visit of the Cuban leader to Bulgaria. Among the main issues discussed was the state of economic development in both countries, their relations with Albania, China, Romania and Yugoslavia; the Cuban foreign policy in Africa and the Caribbean; the civil war in Angola; the battle for the Third World.