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.

A visit of Soviet Premier Alexei Kosygin from 26-30 June 1967 prompts this report from the Mexican Embassy in Havanna to the Secretary of Foreign Relations in Mexico City. They discuss: the position assumed by the Cuban Government and Communist Party in relation to Latin America, the Middle East and Vietnam, the internal administration of Cuba and the political operation in Cuba.

An air letter from Mexican Embassy describing Brazil's role as the mediator of the Cuban crisis, the dismantling of Cuban nuclear weapons bases, and the role of the UN in this conflict.

The Cuban Chargé d’Affairs, Mr. Ramon Sinobas, said that he had instructions from his government to ask the Mexican government for its support in the United Nations, to obtain acceptance of the five points that Prime Minister Castro had just made known.

The Cuban Chargé d’Affaires, Mr. Ramon Sinobas, visited the Mexican Undersecretary, Pablo Campos Ortiz. They touched on the following points: Mexico's support of Cuba in the UN General Assembly; economic sanctions against Cuba and the shipment of foodstuffs and other merchandise from Mexico; and Cuba joining the Convention on the Inter-American Indigenous Institute.

Mexican Undersecretary Pablo Campos Ortiz calls to ask if there is any information about the rice and the beans that the Cuban government had acquired in Mexico and for whose shipment Cuba had especially sent a Cuban boat, the “Bahia de Mariel”. It appears that it has not yet been possible to authorize the dispatch of the merchandise.

Mexican officials meet to discuss trade with Cuba and the difficulty of delivering foodstuffs and other goods to their destinations in Cuba.

Letter from Mexican Ambassador to the Organization of American States (OAS) to Mexican Foreign Minister describing a recent meeting with Mr. Edward Martin, Assistant Secretary of State for Latin American Affairs and the various Cuba-related items that were discussed.

A message from the Mexican Foreign Ministry to its Embassy stressing that is aware of the Brazilian government’s various proposals to intervene in the resolution of the Cuban-North American problem.

At the request of the United States, the Council of the Organization of American States met, acting provisionally as Organ of Consultation, in a secret session, with the objective of listening to a speech by U.S. United Nations Ambassador Adlai Stevenson in relation to the issue of Cuba.