Bulgarian Ambassador to Cuba Stefan Petrov analyzes Cuba’s domestic and foreign policies in an informational report to Bulgarian leader Todor Zhivkov. Petrov criticizes Cuban Communist Party policies and claims they are incompatible with Marxism-Leninism (e.g. Cuba’s focus on conflict between imperialism and national liberation rather than socialism and capitalism). Cuba has adopted an anti-Soviet attitude and believes Cuban leadership is the vanguard of communism. Petrov reviews Cuba’s conflicting relations with Latin American communist parties and Cuba's support to guerilla movements in the region. Petrov notes that Bulgarian-Cuban relations remain positive.

In a report on the Cuban Communist Party, Bulgarian Embassy counselor S. Cohen discusses strengths and concerns with the Cuban goverment. The Cuban revolutionary movement debunked the theory of geographically determined fatalism, but also displays a strong dependence on the Latin American liberation movement (e.g. Jose Mari, Simon Bolivar) for inspiration instead of socialist principles. Cohen reports negative developments including the Cuban government’s growing ambition to rule the Third World revolutionary movement and strong belief in the Cuban armed struggle as a template for all national liberation movements. The Cuban delegation strongly endorsed armed struggle as the only means of socialist advancement at the Tricontinental Conference recently held in Havana. Bulgaria must remain close with the Cuban government to help it develop economically and mature politically.

First Secretary of the Bulgarian Embassy to Cuba A. Hubenov describes a Latin American communist party conference held in Havana, November 1964. The parties secretly discussed their struggle against imperialism and the expansion of communist revolutions in Latin America and Cuba's assistance to that struggle. Conference deliberations included a discussion of the Sino-Soviet split and the fear of factions within the communist movement.

The conversation takes place soon after the IL-28 crisis, which gives Mikoyan a chance to patch up the relationship with trade agreements and promises of future aid and industrial cooperation. Near the end of the conversation, Guevara and Mikoyan discuss the theory of revolutionary struggle. Guevara shares his vision that “further development of the revolutions in Latin America must follow the line of simultaneous explosions in all countries.” Mikoyan cautions him, pointing to the Soviet experience and using the metaphor of the rebellion on the battleship “Potemkin.” Hinting at further disagreement ahead, he gently registers his disagreement with the Cuban leader’s drive to ignite revolution in the hemisphere.

Report on a conversation between the Cuban Minister of Internal Affairs Ramiro Valdez Menendez and the KGB representative in Havana regarding the former's trip to the Soviet Union. The discussion concerns a Cuban proposal to set up a Soviet intelligence center in the country, which the Soviets turned down.

Memorandum highlighting recent developments in countries of Central Latin America. The information has been received from the Nicaraguan Ambassador to Bulgaria, after a visit to Budapest where he has met with the Minister of Foreign Affairs of Nicaragua. The document summarizes political developments that have taken place in the following countries: El Salvador, Honduras, Guatemala, and Nicaragua.

Soviet Foreign Minister Andrei Gromyko cables the Soviet Embassy in Havana that the Soviet leadership had decided to allow UNSG U Thant and his representatives to visit Soviet launchers sites in Cuba and verify that the launchers are being dismantled.

A letter describing the state of socialist and communist movements in Latin America with respect to their organized struggle against the imperial influence of the US. The letter indicates that the growth of youth, workers' and women's movements in Latin America is conducive to the development of stronger ties with the socialist countries around the world. The letter suggests that a strategic approach towards Latin America should be adopted in establishing cooperation in all spheres of life: economic, political, and cultural. An emphasis is placed on the gradual development of close relations with Latin American communist parties.