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.

Khrushchev wrote to Fidel Castro to discuss the issues in the two countries' relation after the Cuban Missile Crisis. The Soviet leader attacked voices from other countries, including socialist ones, blaming the USSR of being opportunistic and self-serving. He explained the decision to withdraw missiles from Cuba, stressing the possibility of advancing Communism through peaceful means. Khrushchev underlined the importance of guaranteeing against an American attack on Cuba and urged Havana to focus on economic, cultural and technological development to become a shining beacon of socialism in Latin America. Besides, he also invited Fidel Castro to visit Moscow and discuss the preparations for such a trip.

Khrushchev informed Castro of his deal with J.F.Kennedy. The Soviet leader warned Castro of attempts to sabotage the agreement by men in the Pentagon and urged him to restrain from being provoked, e.g. firing at American planes.

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.