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Non-Proliferation Treaty (NPT)

The Treaty on the Non-Proliferation of Nuclear Weapons or Non-Prolfieration Treaty (NPT) is an international treaty developed to prevent the spread of nuclear weapons technology. Between 1965 and 1968, the treaty was negotiated by the United Nation's Eighteen Nation Committee on Disarmament. The treaty was first opened for signatures in 1968 and entered into force in 1970. See also the 1995 NPT Review and Extension Conference collection. [Image: US Ambassador Llewellyn E. Thompson signs the NPT as Soviet Foreign Minister Andrei A. Gromyko watches in Moscow, Russia, on July 1, 1968.]

Popular Documents

October 1967

Alva Myrdal, 'New Roads to Disarmament'

The author of “New Roads to Disarmament," Alva Myrdal was head of Swedish disarmament policy from 1962 to 1973. In her 1967 paper presented at the Institute of International Affairs in Warsaw, Belgrade, and Zagreb in 1967, Myrdalpositions nuclear disarmament in its broader context and elaborates on her visions of a new world order. She would publicize many of these same thoughts and observations in her 1976 book, The Game of Disarmament. How the United States and Russia Run the Arms Race. In 1982, she received the Nobel Peace Prize for her work on disarmament.

October 8, 1963

Letter from Gomulka to Khrushchev, Marked 'Final Version'

Letter from Gomulka to Khrushchev discussing Polish opposition to Soviet proposal for a Non-Proliferation Treaty. Gomulka suggests that the treaty will further split the communist camp. While discussing the state of Sino-Soviet relations, the Polish leader suggests that the Soviet Union and the PRC adopt a common position in matters of foreign policy in order to strengthen the power of the Socialist camp.

September 4, 1969

Record of Meeting between Minister Aichi and Premier Kosygin

Japanese Foreign Minister Aichi and Soviet Premier Kosygin discuss bilateral relations, disputed territories, the legacies of World War II, China, and the NPT.

August 30, 1974

United Nations Bureau, Japanese Foreign Ministry, 'Outline of Arguments For and Against Japan’s NPT Ratification

A table outlining the various arguments for and against Japan's ratification of the Nuclear Non-Proliferation Treaty.

January 1975

On Japan's Ratification of the Nuclear Non-Proliferation Treaty (NPT)

An internal record evaluating the arguments in favor of Japan's ratification of the NPT.