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

In this conversation, Chancellor Adenauer and Secretary McNamara discussed the West Germans signing the U.S. proposed Limited Test Ban Treaty, which Adenauer felt would be a "success" for the Soviets. Adenauer worried that signing the same documents as the Soviets would recognize the Soviet Occupied Zone.

In this proposed agreement, Secretary of State Rusk asked the White House for authorization to approach the Soviets. Rusk had two central goals in mind: to determine if the Soviets would state whether its allies, such as China, would agree to a nonproliferation agreement and to give Moscow a “somewhat more precise indication of what we have in mind concerning the obligation not to transfer nuclear weapons.”

INR looked closely at Soviet positions on an NPT arguing that the Soviets appeared to “attach a higher priority in using the nondissemination issue as a means of attacking possible NATO nuclear arrangements than in concluding an agreement.”

INR looked closely at Soviet positions on an NPT arguing that the Soviets appeared to “attach a higher priority in using the nondissemination issue as a means of attacking possible NATO nuclear arrangements than in concluding an agreement.”

INR estimated that the Soviets wanted to “play upon French concern” that West Germany might acquire nuclear weapons through new NATO nuclear arrangements, such as the MLF.

Before the words “nuclear nonproliferation” entered official discourse, the term “non-diffusion” (or “non-dissemination”) of nuclear weapons was used routinely. In part stemming from the negotiations over Berlin, during 1962-1963 the Kennedy administration held talks with allies and adversaries on the possibility of a non-diffusion agreement which included Germany. In light of a recent Soviet proposal, INR veteran Soviet expert Sonnenfeldt explained why Moscow had moved away from earlier proposals singling out West Germany and was focusing on the general applicability of a non-diffusion agreement.

As discussion of a NATO multilateral force (MLF) unfolded, unfolded, one question which had to be addressed was how the Soviet Union would respond to the creation of such a NATO force. Because a NATO force would increase Western military capabilities, Soviet opposition was assumed.

Concerns about the credibility of US nuclear deterrence generated Supreme Allied Commander Europe (SACEUR) General Lauris Norstad’s proposal for a NATO-controlled medium-range ballistic missile (MRBM) force. This lengthy report represented INR’s assessment of “present and future European interest in national or multinational nuclear weapons capabilities,” including the MRBM proposal, and the extent to which an “enhancement of NATO's nuclear role” could “deter national or multinational European nuclear weapons programs.”

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