Document is notifying Soviet ambassadors to visit respective heads of state and Ministers of Foreign Affairs and inform them of the Soviet position on the draft treaty of the NPT given that the 18-Nation Committee on Disarmament recently finished its deliberations on the Treaty and submitted it to the UNGA.

Brezhnev discusses negotiations with the United States over the Non-Proliferation Treaty.

This lengthy report was State Department Bureau of Intelligence and Research's contribution to the first National Intelligence Estimate on the nuclear proliferation, NIE 100-6-57. Written at a time when the United States, the Soviet Union, and the United Kingdom were the only nuclear weapons states, the “Fourth Country” problem referred to the probability that some unspecified country, whether France or China, was likely to be the next nuclear weapons state. Enclosed with letter from Helmut Sonnenfeldt, Division of Research for USSR and Western Europe, to Roger Mateson, 4 June 1957, Secret

Different points of Mexico and Brazil on the denuclearization treaty of Latin America

On May 9, Brazil signed the Treaty of Tlatelolco to ban nuclear weapons in Latin America.

As a result of the commission, a draft treaty has been prepared for the creation of a Nuclear Weapon Free Zone. Brazil and Mexico have rival approaches to denuclearization.

This report focuses on Mexico and Brazil’s differeing approaches towards the issue of denuclearization of Latin America

The memo produced by the General Directory of Nuclear and Disarmament Issues of the Argentine Foreign Ministry presents a strategy in regard to Brazil in the nuclear area, considering the meetings between Dante Caputo and Olavo Setúbal between 20 and 21 May 1985 in Buenos Aires. Argentina presented the regime of mutual inspections as the most important aspect.

In this memorandum, General Director for Nuclear and Disarmament Affairs Adolfo Saracho reports on a Brazilian airplane's flight over the uranium enrichment plant at Pilcaniyeu.

This memo from the Argentine General Directorate of Nuclear Affairs and Disarmament to the South America Directorate proposes a joint Argentine-Brazilian declaration on the peaceful use of nuclear weapons. Rejecting the establishment of IAEA safeguards, the memo instead suggests a "mutual guarantee mechanism" based on cooperation and inspections on a case by case basis.