Dimo Dichev, Head of Foreign Policy and International Relations Department for the Bulgarian Communist Party's Central Committee, suggests inviting Cuban Communist leader Anibal Escalante to visit Bulgaria.

Konstantin Tellalov, Deputy Head of the Foreign Policy and International Relations Department of the Bulgarian Communist Party's Central Committee, reports on a visit of Cuban children to Bulgaria.

The Ministry of Foreign Affairs updates the Central Committee of the Bulgarian Communist Party on a group of Cuban children touring socialist countries.

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 Central Committee of the Bulgarian Communist Party approves the Cuban government’s request to train Cubans in counterintelligence, but not sabotage.

In a memo, Dimo Dichev, Head of the International Relations and Foreign Policy Department of the Bulgarian Communist Party Central Committee, reports unsatisfactory relations between Cuba and Bulgaria. Dichev suggests political and journalism exchanges to show an initiative to bolster relations. Dichev proposes exchanges between specific Cuban and Bulgarian newspapers and magazines.

In a memo, Dimo Dichev, Head of the International Relations and Foreign Policy Department of the BCP Central Committee, reports unsatisfactory relations between Cuba and Bulgaria. Dichev suggests political, agricultural, pedagogical and journalism exchanges to show an initiative to bolster relations.

The Politburo of the Central Committee of the Bulgarian Communist Party resolves to expand Bulgaria's relationship with Cuba. The Politburo proposes an official visit and Bulgarian exhibition.

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.