In a memorandum, Konstantin Tellalov, Head of the Foreign Policy and International Relations Department of the Central Committee of BCP, and Foreign Minister Ivan Bashev evaluate Cuban-Bulgarian relations. Tellalov and Bashev contextualize Cuba's development both nationally and internationally. Cuba's primary concerns are related to its economy (re: housing, rationing, embargo). Cuba's leadership continues to display a limited understanding of Marxism-Leninism, scientific planning (central planning), and the importance of COMECON. Taking into consideration the Bulgarian delegation’s recent visit to Cuba, they stress the importance of Cuba's success and the need for a radical, all-embracing commitment to relations.

The Bulgarian Communist Party Politburo report includes three main documents: a protocol and resolution with notes, a top secret information note, and a top secret protocol from 30 July 1970. The first section includes the Politburo's approval of the delegation's negotiations with Cuba, proposals to restructure economic partnership, and the Bulgarian delegation's statements on miscommunication between Cuba and Bulgaria. The second section, top secret information note, summarizes important exchanges during the Bulgarian visit to Cuba (e.g. Zhivkov's discussion on the importance of economic cooperation (COMECON) to the development of socialism). The third section, the top secret protocol, includes portions of a conversation between Bulgarian delegation and Cuban Politburo members. Castro summarizes ideas exchanged during the state visit.

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 memorandum to the Central Committee of the Bulgarian Communist Party Politburo, Gero Grozev, Deputy Minister of Foreign Affairs, critiques the Cuban Communist Party and its approach to building socialism. Grozev describes Cuba’s increasingly poor relations with European communist parties, interference in Latin American affairs, and misunderstanding of Marxist-Leninist principles. Grozev continues describing Cuban leaders as committed functionaries unaware of their mistakes. To correct Cuba’s mistakes socialist countries should increase contact with the Cuban government and help it develop economically and mature politically.

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 resolution includes a summary of the annual survey and election meeting of Bulgarian Communist Party organizations in Cuba. The resolution documents the meeting agenda and statements by Bulgarian officials Michev and Hubenov.

In his comments, Michev summarizes the international climate in which Bulgarian organizations assisted Cuba. Hubenov’s comments follow. He discusses the political atmosphere in Cuba and disagrees with Michev’s comments on developments of political unity in Cuba. (Michev's comments are not included in the translation.) Hubenov also argues that the Bulgarian government is uninformed of the political situation in Cuba—its invitation for Fidel Castro to visit Bulgaria exemplifies the problem. Hubenov reviews the international impact of the Bay of Pigs invasion, the resulting isolation of Cuba in Latin America, and Castro’s inability to leave Cuba when the revolution’s success is threatened.

Bulgaria’s Ambassador to Cuba Konstantin Michev reports on the reorganization of Cuba’s revolutionary government. In the report Michev notes that the government is realigning itself with the intent to become socialist, though not publicizing it. The realignment includes the creation of ministries and committees to oversee the transition and affairs of the country. Fidel Castro, Raul Castro, and Ernesto Guevara are assigned key posts to manage the transition. Through the help of socialist countries, Cuba is developing independent of USA, which previously hampered Cuba’s growth and development. Michev also notes that the Cuban government is prepared to defend itself against counter-revolution and US intervention into Cuban affairs.

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 document includes excerpts from a Bulgarian delegation's report on their visit to Latin America in 1960. The excerpt covers the delegation's visit to Cuba.

Avramova and Agnelov report Cuba's desire to establish diplomatic and cultural relations with Bulgaria. Cuba's interest paramountly involve trade. Avramova and Angelov summarize meetings with important government officials, particulalry Ernesto Guevara, head of the National Bank, and Raul Castro, Minister of Armed Forces. Topics include: the development of the revolution against the Batista government, post-Batista power struggles, geographical fatalism and US influence, Cuba's challenges (e.g. illiteracy, the lack of specialists), land and agricultural reform, construction, industrialization. The delegation recommends the establishment of official relations with Cuba and an invitation for Raul Castro to visit Bulgaria.