The telegram bears on the circumstances surrounding Fidel Castro's controversial 27 October letter to Khrushchev. Alekseev describes Castro's demeanor as being irritated and paranoid at the time of writing the letter. He provides background on Castro's actions and attitudes at the peak of the crisis, and especially his nocturnal visit to the Soviet embassy and preparation of his letter to Khrushchev on the night of 26-27 October. He advises Moscow on how to handle the Cuban leader, and offers analysis into the emotions and overall mood of Castro and his associates at that moment in the crisis.

A telegram dispatched from the Soviet embassy in Havana early on the morning of Saturday, 27 October 1962. Fidel Castro was at the embassy and composing an important "personal" message for Nikita Khrushchev. The alarmed Cuban leader anticipated US invasion in the next "24-72 hours."

A report on Alekseev's 23 October 1962 conversation with Fidel Castro, together with two members of the Cuban leadership, the day after the public crisis began. Presented with official Soviet statements on the crisis, Castro reviews the situation and confidently vows defiance to the US "aggression," which he claimed was doomed to failure.

Mongolian Ambassador in Moscow Luvsan and the visiting Cuban Minister of Foreign Trade Alberto Mora make plans for future trade negotiations between Mongolia and Cuba. They also discuss the aftermath of the Cuban Missile Crisis and the effect of the US embargo on Cuba's trade relations with Latin American countries and the sale of its sugar harvest.

Summary of intelligence sources reporting that the US had been preparing for an invasion of Cuba and Kennedy only used the installation of missiles as a pretext to carry out aggressive actions. The US carried out the blockade also to warn the Soviet Union against signing a separate peace treaty with the GDR and to strengthen the position of the Democratic Party before the election. According to the report, other capitalist countries agreed that it was only the flexible policy of the USSR that prevented the outbreak of war.

Report on a private conversation in which Assistant on Latin American Affairs to the US Secretary of State Goodwin said that the US had originally planned to invade Cuba in January 1963, but then accelerated the preparation process during the Cuban Missile Crisis. He also stated that Kennedy wanted to take advantage of the Sino-Indian conflict because the group of neutral states including India would not be able to come out in Cuba's defense. Goodwin predicted that the US would not improve relations with Cuba until the Castro government was overthrown.

Report on the relief in Washington after the height of the crisis had passed and the possibility of the US pledging not to invade Cuba, provide ports and other government facilities to Cuban emigres or training Cuban emigres on US territory. The report also highlighted the American reluctance on the normalization of economic relations and the Guantanamo base.

Report on the exchanges between the KGB Station Chief in Washington and ABC News correspondent John Scali. They discuss possible Soviet actions in West Berlin in the case of an American invasion of Cuba and an American offer not to invade Cuba if Fidel Castro publicly pledges to dismantle the long-range missiles. Washington would agree to let Cuba keep the defensive-type missiles and might make a secret pledge to withdraw the American troops in the South.

Report on the American mass media and preparations for war. "Washington is engulfed in an atmosphere of war hysteria."

Report on the reaction among DC politicians to Kennedy's decision to blockade Cuba.