Hungarian Ambassador to Cuba József Szipka reports on Soviet-Cuban relations from the early stages of the Cuban revolution to the present. The Cuban government depends on economic, military and political aid; trade agreements; and cultural and scientific exchanges from socialist governments, primarily the Soviet Union. Szipka adds that the Soviet Union’s flexible political steps during the Cuban Missile Crisis ensured Cuba’s security from a US invasion. From Szipka’s perspective, the missile crisis was a valuable learning experience for Cuban officials.

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.

A Note on the Final Talk with the CP Cuba Delegation on 21 November 1968 about Cuba's foreign relations with various countries, including the Soviet Union and GDR.

In a meeting between Mikoyan and the heads of diplomatic posts of socialist countries, there is a discussion of various issues relating to the Cuban Missile Crisis.

Paszkowski discusses changes in the tensions of the Cuban Missile Crisis situation, including his opinion that the US's recent actions and rhetoric were a pre-election bluff.

Jelen compiles this report from his conversation with the USSR Ambassador [Aleksandr] Alekseyev. Alekseyev believes that the Soviet declaration from the 11th removed the danger of more serious [US] military action [against Cuba]. At the same time, he takes into account the possibility of the attempts of staging subversive landings, as well as the possibility of activities [carried out] by Cuban emigrant pirates against the ships. The two also discuss economic aid to Cuba, especially in the form of foodstuffs.

Pinto calls to attention the rude and violent tone of the proclamations of support to Cuba on the part of China contrasting with the relative moderation of the USSR and of its satellites. Pinto believes Mao is "taking a shot" at Khrushchev.

Brazil's embassy in Moscow discusses visits by Novotny, Ulbricht and Gomulka to Moscow and says that there is the impression that the recent international events have created a state of disorientation in the community of socialist countries and that the great challenge of Khrushchev will be to accommodate this state of affairs in the short term.

Letter from Gomulka to Khrushchev discussing Polish opposition to Soviet proposal for a Non-Proliferation Treaty. Gomulka suggests that the treaty will further split the communist camp. While discussing the state of Sino-Soviet relations, the Polish leader suggests that the Soviet Union and the PRC adopt a common position in matters of foreign policy in order to strengthen the power of the Socialist camp.