Fidel Castro expresses his desire for Cuba--US diplomatic relations to resume and asks Kudryavtsev for Soviet support at the UN Security Council in countering American aggression. Castro asks Kuydryavstev to ascertain the Soviet opinion on Cuba's participation in a conference of neutral countries organized by Yugoslavia and the UAR.

In a conversation between Kliszko and Raul Castro, a referral was made to the position assumed by the Minister of Industry in Cuba, Ernesto Guevara, at the economic seminar of Afro-Asian countries in Algeria in February 1965. Castro stated that he was not prepared to discuss the essence of the issue, e.g. the extent of aid from socialist countries to developing countries, but he felt Guevara's comments were extreme and out-of-place at the seminar.

During a trip from Orneta to Katowice, Raul Castro and Zenon Kliszko had conversation on the following topics: (1) assessment of the position of the Italian Communist Party, (2)assessment of the position of the Romanian Workers’ Party, (3) the UPSR and other Communist Parties in Asia, and (4) the Matter of a Former Member of the National Leadership UPSR – J. Ordoqui. For the Polish side, the program of the Italian Communist Party is not clear, particularly with regard to the question of establishing a uniform workers’ party.

During his visit in Poland, Castro relates Cuba's position on a conversation taken place in Moscow and why it may be of interest to the Cubans. Gomulka raises the issue of the missiles. In Gomulka's opinion two factors were decisive: contradictions which arose within the socialist camp and the policy which was conducted by Khrushchev. Gomulka is assured that US is capable of conducting a war with Cuba by way of conventional weapons, it does not have to use nuclear weapons. It is clear that the socialist camp and the USSR cannot defend Cuba in any other way but by using nuclear weapons. If a conflict is meant to be, then it will be a nuclear conflict, there is no other way. Gomulka further raises a question whether to go into a nuclear war or not. Castro disagrees with a manner nuclear weapons were withdrawn from Cuba by Soviets. Khruchshev explained that he did not have time. Per Gomulka, Khrushchev conducted a policy which was not thought-out and which was all-out. Gomulka further discusses his talks with Chinese and Vietnamese comrades re: nuclear weapons issue.

A visit of Soviet Premier Alexei Kosygin from 26-30 June 1967 prompts this report from the Mexican Embassy in Havanna to the Secretary of Foreign Relations in Mexico City. They discuss: the position assumed by the Cuban Government and Communist Party in relation to Latin America, the Middle East and Vietnam, the internal administration of Cuba and the political operation in Cuba.

A record of a conversation between Soviet Ambassador to Cuba Sergey Kudryavtsev and Che Guevara, recorded in Kudryavtsev's diary. They discuss the internal and economic situations in Cuba, as well as U.S.-Cuban relations.

Czech government decision in late September 1959, to approve sending what was euphemistically described as “special technical supplies” or “special technology” (but in truth were weapons, specifically 50,000 submachine guns and ammunition) to Havana, using a neutral Swiss firm as a cut-out to conceal the transaction, especially from American eyes.

Report on a breakfast held by Zorin - chairman of the Security Council - with its members. The topics of discussion include: American agreement to the Soviet proposal for checks on vessels carried out by representatives of the International Red Cross, the Irish proposal to convene the Council right after U Thant's return from Cuba to decide on an inspection mechanism for the dismantlings, and the Ghanaian delegate's remarks on the situation in Congo.

January 25-26, 1968. F. Castro speaks of relations with the US and Kennedy, friendship with the USSR, as well as placement of missiles, security issues as the US's imperialistic nature, while extolling the virtures of socialism, Cuba, and "The Revolution." Castro also stresses that Soviet withdrawal of weapons from Cuba is a blow to the international Communist movement.