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

Zhou Enlai and Nehru discuss French and Portuguese colonialism in India and China, the Sino-American conflict, conflict in the Taiwan Straits, and the China issue at the United Nations.

UN Representative Milko Tarabanov reported to the Bulgarian Communist Party Politburo recent developments of the Conference of the Eighteen-Nation Committee on Disarmament. The report summarizes the conference's work from November 1962-December 1962, the period following the Cuban Missile Crisis. Tarabanov reports that Western powers put forward two draft agreements calling for the cessation of nuclear tests in the atmosphere, under water and in outer space, and underground--the proposals were debated during the 17th United Nations session.

The Cubam Missile Crisis occurred during the conference's session. Main issues discussed after Cuban Missile Crisis included: suspension of nuclear tests, Soviet Foreign Minister Andrei Gromyko's proposal at the 17th session of the UN, ways to measure nuclear weapons testing, and military alliances (NATO).

Tarabanov also addresses the inter workings of conference members--Western, socialist, and neutral--including disagreements among Western powers. In summary Tarabanov adds that the prospect for cessation of nuclear tests is poor, but notes that the US may consider closing military bases, though not under pressure of the Soviet Union or neutral countries.

The Chinese Foreign Ministry reports on overtures made by the United States toward initiating peace talks to end the Vietnam War. Many countries in such as Ghana, France, India and Yugoslavia are attempting to promote the talks, but China remains skeptical of these initiatives and opposed to opening talks.

Short report on India's response to Pakistan's purchase of a nuclear reactor from China.

Soviet Foreign Minister Vyacheslav M. Molotov, Chinese Premier Zhou Enlai, and Vietnamese Vice-Premier Pham Van Dong discuss various topics relevant to the Geneva Convention, including the construction of foreign military bases in Vietnam, Laos, and Cambodia, the line of demarcation between North and South Vietnam, the establishment of regrouping zones in northeast Laos, the withdrawal of foreign troops from Indochina, and the possible formation of an international supervisory commission.

Wang and Chauvel discuss the armistice in Indochina. Wang presents China's ideas on the three part supervisory committee for the armistice. Chauvel suggests India, Burma, and Pakistan as examples of possible neutral nations to participate in the NNSC, and Wang supports the Soviet delegation's suggestions.

Zhou Enlai and U Nu first talked about the decision made on the Geneva Conference regarding the armistice in the Korean Peninsula and the role of the US in it. Then they talked about the elements that complicated the Sino-Burmese relations and the need for building mutual trust and signing a non-political agreement. They also discussed the principles they would have in a joint statement before the signing of this potential agreement.

(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.

The UK responded the decision of inviting China to attend the Asian-African Conference with anger, stating that countries in the Bogor Conference had wrong expectations toward China. The US feared that China would have great influence on the Asian-African Conference and thus weaken US influence in the region. The US and UK also worried that China’s participation would improve China-Japan relations. French press expressed this decision as the evidence of the failure of the US power in Southeast Asia.