Hungarian ambassador to Czechoslovakia Lajos Cséby summarizes Deputy Head of the Sixth Main Department [of the Czechoslovak Ministry of Foreign Affairs] Stross’s report on relations between Cuba and Czechoslovakia. Stross reports friendly relations between the two countries, which did not experience difficulties during the Cuban Missile Crisis. Stross outlines Cuba’s problems, economically and politically, and believes that Cuba’s revolutionary success depends on its economic growth. Cuba misunderstood the Soviet Union’s approach to the Cuban Missile Crisis. This led to signs of Chinese influence on Cuban politics, which Stross believes are reversing since Castro’s [1963] visit to the Soviet Union.

The report details Bulgaria’s preparations for a Cuban delegation and the visit itself. The author offers both praise and criticism of Cuban leadership. There has been positive progress in Cuba in recent years, yet underlying problems remain (e.g. the economy lacks planning). The Bulgarian government devised the visit as an opportunity to teach the Cuban delegation about building state socialism. The report includes an overview of the Cuban delegations visit. Discussions during the visit involved Cuban economic growth and barriers, China, Romania’s non-interventionist policies, Nixon’s 1972 visit to Moscow, and economic and scientific cooperation (particularly between Bulgaria and Cuba).

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.

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.

The Bulgarian Embassy in Havana reports to the Central Committee of the Bulgarian Communist Party and the Bulgarian Ministry of Foreign Affairs on political, economic, and cultural developments in Cuba circa 1963. Cuba is politically united, but is experiencing economic hardship after the “Caribbean Crisis” primarily because of the US embargo. In the report, embassy staff reviews developments between socialist countries and Cuba throughout 1963. Some examples include communist aid to Cuba after Hurricane Flora and Cuba’s stance on Sino-Soviet relations. Bulgaria’s show of solidarity resulted in concrete political, economic, and cultural cooperation. Embassy staff notes the drawbacks and benefits of Bulgaria’s relationship with Cuba.

Ivan Prumov , Minister of Agriculture, and Ivan Abadzhiev, First Secretary of the Central Committee of Dimitrov Communist Youth Union (DCYU) address Cuba’s request for young specialists in agriculture (e.g. agronomists, technicians, gardeners). The Bulgarian government agrees to send specialists who will work and live in a State Agrarian Cooperative. The Ministry of Agriculture and Central Committee of DCYU are responsible to send and assist 76 agriculture specialists to Cuba.

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.

In Resolution NO. 136, the Central Committee of the Bulgarian Communist Party establishes diplomatic relations with Cuba; sets the goal of establishing and expanding political, economic, and cultural relations with Cuba; and proposes an invitation for Raul Castro to visit Bulgaria. The resolution includes a report drafted by Minister of Foreign Trade Georgi Kumbiliev, on behalf of Todor Zhivkov, to Prime Minister Anton Jugov. Kumbiliev reviews Cuba's interest in a trade agreement with Bulgaria and provides background information about Cuba's trade agreements with other socialist countries, specifically Cuba's export of sugar and import of petrol and agricultural machines.

Resolution of the Bulgarian Communist Party to establish diplomatic relations with Cuba. A report is presented which describes current Cuban economic and trade relations with the Soviet Union, as well as Poland and Czechoslovakia.