An excerpt on Cuba from Communist Party of the Soviet Union General Secretary Leonid I. Brezhnev's secret speech, “About Current Problems of the International Situation and the Struggle of the CPSU for the Cohesion of the World Communist Movement,” to the CPSU CC Plenum on 9 April 1968.

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.

A record of a conversation between Soviet Ambassador to Cuba Sergey Kudryavtsev and Che Guevara, recorded in Kudryavtsev's diary. They discuss the U.S. policy toward the revolutionary government of Cuba. Guevara says that U.S. President Kennedy's recent speech, in which he said the U.S. would not take direct military action in Cuba, was an effort to portray the U.S. in a positive light on the eve of Cuban discussions in the UN, and to ameliorate opinions of the U.S. in other Latin American countries.

A record of a conversation between Soviet Ambassador to Cuba Sergey Kudryavtsev and Che Guevara, recorded in Kudryavtsev's diary. They discuss financial transactions being made between the Cuban and Soviet governments, gold and currency reserves, the U.S. economic blockade of Cuba, and more on U.S.-Cuban relations.

A record of two conversations between Soviet Ambassador to Cuba Sergey Kudryavtsev and Che Guevara, recorded in Kudryavtsev's diary. They discuss economic relations and financial trades, especially the Cuban purchase of Soviet gold. They also discuss how mobilization in Cuba has led to a decrease in the activity of the counterrevolutionaries, as well as the possible military intervention from the United States.

Alexei Adzhubei, Khrushchev’s son-in-law and the editor-in-chief of Izvestia, reports on his meetings with US journalists and officials in Washington, DC. Especially significant was his 30 January meeting with President John F. Kennedy in which Kennedy compared the communist revolution in Cuba with the 1956 Hungarian Revolution suppressed by the Soviet Union. Adzhubei also described Kennedy's comments on German reunification.

Excerpt from a report prepared by Politiburo member Dmitry Polyansky on Khrushchev's foreign policy mistakes, presented at 14 October 1964 CPSU Central Committee plenum. Polyansky included a scathing denunciation of Khrushchev’s “adventurism” in sending the missiles to Cuba, causing the “deepest of crises [that] brought the world to the brink of a nuclear war.” Ridiculing Khrushchev’s claims of having achieved a successful “penetration” of Latin America, Polyansky dismissed his contention that the crisis had in fact ended with a Soviet victory.

Protocol 41 details a meeting on a group of economic advisers sent to Cuba from the Soviet Union.

Protocol 32 gives hint to the consternation Khrushchev faced to have his plan of missiles placed in Cuba approved. It took two separate meetings and four days for the Presidium to conceded to Khrushchev's plan.

Report on a conversation between the Cuban Minister of Internal Affairs Ramiro Valdez Menendez and the KGB representative in Havana regarding the former's trip to the Soviet Union. The discussion concerns a Cuban proposal to set up a Soviet intelligence center in the country, which the Soviets turned down.