Alfonso Garcia Robles explained how the Mexican delegation tried to gather the support of the Latin American countries for the NPT draft. These countries prepared and presented modifications to the NPT text, and the United States and the Soviet Union accepted some of these proposals. Garcia Robles reported that the Argentinian and Brazilian representatives said they recognized the value of the NPT but would not support it if it kept its clause prohibiting peaceful nuclear explosions. The Ambassador also reported the Soviet positive reactions toward the Treaty of Tlatelolco. Garcia Robles recounted the skepticism of some delegations toward the NPT. He recommended not to sign the NPT in 1968 unless the Soviet Union signed Protocol II of the Treaty of Tlatelolco, which includes negative security assurances.

Soviet guidance to its ambassador in Havana on the establishment of a Latin American nuclear free zone. Soviet concerns are voiced about the possibility of the treaty impeding on the transit of nuclear weapons in large areas of the Atlantic and Pacific oceans.

Hungarian Chargé d’Affaires János Radványi reports on Anastas Mikoyan’s visit to Washington, DC. After a brief description of Mikoyan’s Washington itinerary, the report is divided into three sections: Mikoyan’s impressions of his meetings with American officials, meetings in Cuba with Cuban officials, and meetings about different socialist countries (e.g. China, Hungary). Primary subjects discussed include the presence of missiles in Cuba, nuclear proliferation and Latin America as a nuclear free region, missile bases, and the Berlin issue.