Pavlicek reports there is an apparent rift between Cuban Foreign Ambassador Roa and Soviet Premier Khrushchev on the orders to dismantle the missile sites. Roa believes the people will not understand and misinterpret this step by the Soviets, as well as the Soviet Union losing international prestige. Fidel Castro plans to make a speech on public television to clarify the whole situation. Castro also made clear his paranoia about the United States not holding up to their promises and was convinced an invasion was still imminent.

Pavlicek writes of a breakthrough with the UN Secretary General and Cuba with regards to ending the crisis; Castro is willing to enter into settlements to resolve the crisis peacefully, on the condition that Cuba's sovereignty and security not be infringed by the United States. Preparations are being made for Cuban foreign minister Raul Roa to fly to the UN Security Council meeting.

Pavlicek writes of the negotiations between Khrushchev and Kennedy and of the Cuban people's reaction to them, which is mixed. Among the higher ranking intelligentsia, there is a suspicion that Cuba's defenses will be weakened. Among the lower-level staff, Khrushchev is met with trust and understanding. The Czechoslovak Press Agency is to publish the events in favor of the Soviet Union, portraying it as forcing the United States to negotiate.

Pavlicek informs Prague that Cuban anti-aircraft forces fended off and shot down a group of U.S. jet bombers, which were assumed to be on a mission to examine the missile bases in Cuba. He also intercepted a message from Washington that if Cuba does not leave a free zone for American personnel to land and inspect the bases, there will be "further action." The bases are not to be dismantled, and an invasion by the United States is to be anticipated.

Further reports from Pavlicek indicate despite soft rhetoric from the United States indicating a willing to negotiate, aggressive preparations against Cuba continued. In particular, there was a large reinforcement of air force bases in Florida and Key West, as well as an announcement of increased intensity of air reconnaissance over Cuba. By the time of this message, there already have been exchanges between Cuban anti-aircraft guns and U-2 recon planes. However, there are no significant measures observed among military installations in Europe, with Czechoslovak troops maintaining maximum combat readiness. Very few instances of insubordination and dissent are found.

The cable concerns a conversation between Vrana and Pinner the night before, about Castro's conviction of an impending invasion of Cuba by the United States and associated mercenaries. Prague is told if that event comes to pass, all classified documents in the embassy will be burned. Emergency measures are being prepared, and tensions are evidently high.

The cable states Cuba has alerted its armed forces to maximum combat readiness. Cuba's government had already taken the precautions of arresting known counterrevolutionaries in all aspects of society, with all important factors monitored. General aura of the country is one of tenseness, but the people continue about their lives as normal. There is a sense of strong revolutionary unity in the wake of this blockade, especially after a speech given by Castro. Cable concludes with a message that the first Soviet ship arrived on the basis of not carrying any military hardware.

This cable sent to Prague confirms the decision by President John F. Kennedy to blockade Cuba, based on talks between Cuban Foreign Minister Raul Roa and Soviet Ambassador to Cuba Aleksandr Alekseev. Despite no orders for the American warships to stop Soviet ships, Alekseev was preparing in anticipation for "dangerous provocations." Cuba canceled all PanAm flights, while at the same time allowing Czech and Soviet flights to proceed.

Czechoslovak Intelligence reports on a possible assassination plot against Castro and a possible coup against the Revolutionary Government in Havana. The document details the plot being planned by individuals in Havana including smuggling explosives into a public celebration for 1 May. Microfilms containing information on the plot including the organizers and place of action. It is obvious from this correspondence that the planned assassination and coup against Castro are part of the Bay of Pigs Invasion.

The report details a meeting between Deputy Foreign Minister Hajek with Cuban Foreign Minister Raul Roa. After a dinner banquet which is attended by all members of the Cuban foreign ministry and the Czechoslovak embassy, Hajek and Roa pay a visit to Ernesto "Che" Guevara, Chairman of the Cuban National Bank. Conversations ranged from Cuba's international status to ways of thwarting American aggression. It is noted that Guevara was highly paranoid of an American attack on Cuba.