Andrei Gromyko describes the diplomatic measures he deems necessary to ensure the adherence of influential nations and countries in the Socialist sphere to the NPT. Valuing negotiation and diplomatic conversations between representatives, Gromyko especially seeks to obtain the support of countries who have previously expressed reservations about the treaty.

Sweden, Denmark, Norway and Finland expelled all embassy workers from DPRK, accusing them of smuggling weapons, alcohol and cigarettes.The Chairman of the Central Information Group (Zentrale Auswertungs- und Informationsgruppe) of the GDR requests the Deputy Minister check all Korean embassy workers, including diplomats and their relative, and to keep them under careful surveillance.

With a nuclear nonproliferation treaty under consideration in Washington, INR considered which countries were likely to sign on and why or why not. INR analysts, mistakenly as it turned out, believed it unlikely that the Soviet Union would be a co-sponsor of a treaty in part because of the “international climate” and also because Moscow and Washington differed on whether a treaty would recognize a “group capability.”

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

This document provides an overview of the London Nuclear Suppliers' Meeting which included the addition of the five newest countries to the original seven. Most old and new members were receptive when Washington lobbied them to support a “long term and stable regime of restraint” on the export of sensitive enrichment and reprocessing technology. While the French were supportive of the moratorium proposal, the Germans were uncomfortable with it, not least because of the implications for their deal with Brazil.

Reports from Washington, Ottawa, Cairo, Berlin, Brussells, Rome, Stockholm, and Helsinki discussing events that occurred from January-May 1957. Most of the contents revolved around meetings with other foreign officials and actions of embassy's host country.