- Nuclear Test-Ban Treaty
an agreement signed by Britain, the Soviet Union, and the U.S. in 1963, committing nations to halt atmospheric tests of nuclear weapons: by the end of 1963, 96 additional nations had signed the treaty.
* * *officially Treaty Banning Nuclear Weapons Tests in the Atmosphere, in Outer Space and Under WaterTreaty that prohibits all tests of nuclear weapons except those conducted underground.U.S.-Soviet test-ban talks began after concerns arose in the 1940s and '50s about the dangers of radioactive fallout from aboveground nuclear tests. These talks made little progress until the Cuban missile crisis of 1962. In the following year, Britain, the U.S., and the Soviet Union signed the treaty, and more than 100 other governments soon followed. France and China were notable nonsignatories. In 1996 the treaty was replaced by the Comprehensive Test-Ban Treaty, which will not take effect until it is signed by all 44 countries with nuclear power plants. India refuses to do so on the ground that the treaty lacks disarmament provisions and permits nonexplosive testing. See also Nuclear Nonproliferation Treaty.
* * *▪ 1963treaty signed in Moscow on Aug. 5, 1963, by the United States, the Soviet Union, and the United Kingdom that banned all tests of nuclear weapons (nuclear weapon) except those conducted underground.The origins of the treaty lay in worldwide public concern over the danger posed by atmospheric radioactive fallout produced by the aboveground testing of nuclear weapons. This problem had become an important public issue by 1955, but the first negotiations to ban nuclear tests foundered on differing proposals and counterproposals made by the United States and the Soviet Union (Union of Soviet Socialist Republics), which were the two dominant nuclear powers at the time. During most of 1959, both the United States and the Soviet Union temporarily suspended their testing, but negotiations over the next two years were slowed by renewed Cold War tensions between the two countries. A gradual rapprochement between the United States and the Soviet Union was speeded up by the Cuban missile crisis (October 1962), which vividly illustrated the dangers of nuclear confrontation. The Anglo-American and Soviet proposals for a draft treaty came to resemble one another during late 1962, and, after only 10 days of discussion in Moscow in July–August 1963, representatives of the three nuclear powers pledged themselves for an “unlimited duration” to conduct no more tests in the atmosphere, underwater, or in space.The Nuclear Test-Ban Treaty banned nuclear-weapons tests in the atmosphere, in outer space, and underwater but permitted underground testing and required no control posts, no on-site inspection, and no international supervisory body. It did not reduce nuclear stockpiles, halt the production of nuclear weapons, or restrict their use in time of war. Within a few months of signing by the three original parties in August 1963, the treaty was signed by more than 100 other governments, notable exceptions being France and China. The three original parties to the treaty, the United States, the United Kingdom, and the Soviet Union (and its successor, Russia), have the power to veto treaty amendments. Any amendment must be approved by a majority of all the signatory states, including all three of the original parties.It took until 1977 for negotiations to begin on a Comprehensive Nuclear-Test-Ban Treaty, which would extend the ban to underground tests, although the previous year the United States, the United Kingdom, and the Soviet Union had agreed to a treaty banning peaceful nuclear explosions—that is, those ostensibly conducted for purposes of civil engineering projects. Negotiations between the three powers continued until 1980. These faced considerable opposition in the United States, not least from the weapons laboratories, and in 1982 the administration of U.S. Pres. Ronald Reagan (Reagan, Ronald W.) decided to abandon them. In 1991 the Soviet Union announced a moratorium on future nuclear tests, and the U.S. Congress required that this be reciprocated and that talks on a treaty resume. In 1994 the Ad Hoc Committee on a Nuclear Test Ban began negotiations under the auspices of the United Nations' Committee on Disarmament. A draft treaty banning all nuclear weapon test explosions and all peaceful nuclear explosions was passed by the UN General Assembly (General Assembly, United Nations) in 1996 and then was opened for signature. To enter into force, the Comprehensive Nuclear-Test-Ban Treaty has to be ratified by all the nuclear powers and by 44 members of the Conference on Disarmament that possess nuclear reactors (nuclear reactor). By 2007 all of these countries but three (India, Pakistan, and North Korea) had signed, though 10 of those that had signed had not ratified, including the United States and China.Following the moratoriums of the early 1990s, Russia, the United States, the United Kingdom, and France conducted no further tests. France resumed testing briefly in 1995 and permanently ended testing only the following January. China conducted its last test on July 29, 1996. In 1998 both India and Pakistan tested nuclear weapons for the first time, although they also followed their tests with an informal moratorium. In October 2006 North Korea conducted a test of a nuclear device, although the extremely small yield suggested that this might have been a failure.Lawrence D. Freedman
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Nuclear-Test-Ban Treaty — /njukliə ˈtɛst bæn ˌtriti/ (say nyoohkleeuh test ban .treetee) noun either of two international treaties: 1. Partial Nuclear Test Ban Treaty, a treaty banning nuclear tests in the atmosphere, underwater, or in space, signed in 1963 by many… … Australian English dictionary
Nuclear Test Ban Treaty — President John F. Kennedy unterzeichnet am 7. Oktober 1963 den Vertrag im Weißen Haus Der Vertrag zum Verbot von Nuklearwaffentests in der Atmosphäre, im Weltraum und unter Wasser, abgekürzt oft NTBT (Nuclear Test Ban Treaty) oder PTBT (Partial… … Deutsch Wikipedia
Nuclear Test-Ban Treaty — an agreement signed by Britain, the Soviet Union, and the U.S. in 1963, committing nations to halt atmospheric tests of nuclear weapons: by the end of 1963, 96 additional nations had signed the treaty … Useful english dictionary
nuclear test-ban treaty — agreement signed by Britain and the Soviet Union and the United States in 1983 not to test nuclear weapons (in the air, under the sea or in outer space) … English contemporary dictionary
Comprehensive Nuclear-Test-Ban Treaty — (CTBT) Signed 10 September 1996 Location New York City Effective Not in force Condition 180 days after it is ratified by all 44 Annex 2 countries: Algeria, Argentina, Australia, Austria, Bangladesh, B … Wikipedia
Partial Nuclear Test Ban Treaty — 7 October 1963 President Kennedy signs the Limited Nuclear Test Ban Treaty in the Treaty Room at the White House. L R: William Hopkins, Sen. Mike Mansfield, John J. McCloy, Adrian S. Fisher, Sen. John Pastore, W. Averell Harriman, Sen. George… … Wikipedia
Comprehensive Nuclear-Test-Ban Treaty Organization — For the current activities regarding the CTBT, see Comprehensive Nuclear Test Ban Treaty Organization Preparatory Commission. Opening of an exhibition by the CTBTO entitled Putting an End to Nuclear Explosions . From left to right: Michael… … Wikipedia
List of parties to the Comprehensive Nuclear-Test-Ban Treaty — Participation in the Comprehensive Nuclear Test Ban TreatyThe list of parties to the Comprehensive Nuclear Test Ban Treaty encompasses the states who have signed and ratified the international agreement banning all nuclear explosions in all… … Wikipedia
Comprehensive Nuclear-Test-Ban Treaty Organization Preparatory Commission — Preparatory Commission for the Comprehensive Nuclear Test Ban Treaty Organization CTBTO Preparatory Commission logo … Wikipedia
Comprehensive Nuclear-Test-Ban Treaty — noun → Nuclear Test Ban Treaty (def. 2) … Australian English dictionary