This memo to Vasily Kuznetsov, First Deputy Foreign Minister of the USSR, includes proposed amendments and clarifications to various articles and sections of the NPT. Topics of the proposed amendments include an emphasis on the continued importance of sovereignty and territorial integrity and the exchange of research and technology on peaceful uses of nuclear technology. The document also describes how to proceed in negotiations with the American side, as well as with several Warsaw Pact countries, and to telegraph once the requests in the memo have been delivered.

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

(Excerpts) Minutes of discussions of the Warsaw Pact Political Consultative Committee concerning non-proliferation. The Romanian delegation argues against a joint declaration of the Warsaw Pact on non-proliferation for fear that it might be used against China. The other delegations argue that a joint declaration is necessary in order to prevent the creation of the Multilaterall Nuclear Force proposed by NATO.