Report documenting the arrest of Fidel Castro and fellow members of the "26th of July" group in Mexico. The report goes into great detail about the group's organization and training, and their plans for revolution in Cuba.

Chairman Mao addresses the communist compulsion to revolution and past cases of revolutionary activities like the Cuban experience.

The Cuban women's and Ecuador cultural delegations questioned Mao Zedong's opinions on distinguishing the different categories of revolutions, such as the People's Revolution and Colonial Revolution; different approaches of revolutions, such as the Cuban Revolution versus Latin American revolution; and how to protect physical cultural resources.

Aragones discusses a recent speech by Che Guevara to young communists of the Ministry of Industry. He expresses a strong opinion that Guevara's speech was ultimately unclear and unsuccessful.

Grobart discusses the question of potential attacks by counterrevolutionaries in Cuba. Prompted by further questioning, he discusses discrepancies and contradictions within the CPSU leadership, and controversy surrounding Che Guevara and his unique opinion on certain issues.

Cuban foreign and domestic policy is analyzed. Cuba's long-term economic improvement and international agreements regarding Cuban sugar exports are discussed, indicating a "new stage" of the Cuban revolution.

A member of the Hungarian Socialist Workers' Party, Istvan Tempe, describes his impressions of Cuba upon his visit for the fourth anniversary of the Cuban revolution. He notes that while the Cuban population has positive opinion of the Soviet Union, their Communist leadership is generally insufficient.

Chargé d’Affaires ad interim Erzsébet Görög writes a preliminary assessment of Castro’s state visit to the Soviet Union in 1963. Görög reports on improvements in Cuba’s party organization and positive reactions from the Cuban public and media on Castro’s visit. Görög notes different reactions to the visit between the economic/technical and artistic intelligentsia, adding that “Khrushchev managed to win Fidel over to his side in the Soviet-Chinese dispute.” Other topics include emigration and external counter-revolutionary activities.

Hungarian Ambassador to Cuba József Szipka reports on Soviet-Cuban relations from the early stages of the Cuban revolution to the present. The Cuban government depends on economic, military and political aid; trade agreements; and cultural and scientific exchanges from socialist governments, primarily the Soviet Union. Szipka adds that the Soviet Union’s flexible political steps during the Cuban Missile Crisis ensured Cuba’s security from a US invasion. From Szipka’s perspective, the missile crisis was a valuable learning experience for Cuban officials.

In a top secret report, Hungarian Ambassador to Cuba János Beck describes a recent meeting with Cuban President Osvaldo Dorticos. Beck divides the conversation among five categories—agriculture, industry, central planning, counter-revolutionary activities, and the party. Dorticos reports improvements and obstacles (e.g. agricultural production is developing, though slowly, and the growth of the party remains in its initial stages of formation).