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 report to Novotny details the happenings of the Cuban Missile Crisis at that time. Great Britain feels out of the loop and hurt by not being consulted by the United States before it took action, while Kennedy is not backing down on the blockade until the missiles are removed. According to the message, it is unclear whether there are nuclear missiles in Cuba at all; an American army colonel admits to the UN that no traces have been found, despite hundreds of photographs taken. In Czechoslovakia, the situation is unchanged; troops are still on alert and awaiting combat orders, with morale running high. There are even some volunteers willing to go to Cuba and aid their Latin comrades.

This concerns the status of Czechoslovak domestic organizations at the time of the Cuban Missile Crisis. Included in the report are the Revolutionary Trade Union Movement, Central Council of Labor Unions, Czechoslovak Union of Youth, and the National Front.

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.

This report to Antonin Novotny details the European military situation at the time of the Cuban Missile Crisis. Most NATO troops were on combat alert, but no increased activity or suspicious movements were reported. The Czechoslovak Armed Forces were at combat ready status to repel any attack by NATO.

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 record and attached resolution concerns the final decision by the Politburo of the Czechoslovak Communist Party to send arms and "special technology" to Cuba. Among the arms shipped are 2 mobile artillery batteries, 50 million 7.92 mm bullets, and military specialists to aid the Cuban military in the construction of anti-aircraft defenses on Cuban territory. This would prove to be fruitful for the Cubans in the coming Bay of Pigs Invasion.

The report concerns requests from Cuba for shipment of arms from Czechoslovakia, along with providing advisors to the Cuban military. Among the arms being transferred are Czechoslovak fighter planes, automatic rifles and ammunition, mobile artillery, and anti-aircraft guns. Clearly the Cuban desires for arms were fueled by fears of American attack, which would come to fruition in the 1961 Bay of Pigs Invasion.

These concern preparations by the Czechoslovak government for the visit of Ernesto "Che" Guevara on 23 October 1960. The primary topics of discussion are economic assistance to Cuba and advice on raw material production, as Cuba was in the process of nationalizing its economy.