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Chagai-I is the code name of five simultaneous underground nuclear tests conducted by Pakistan at 15:15 hrs PST on 28 May 1998.〔〔〔 The tests were performed at Ras Koh Hills in the Chagai District of Balochistan Province.〔 Chagai-I was Pakistan's first public test of nuclear weapons. Its timing was a direct response to India's second nuclear tests, on 11 and 13 May 1998. These tests by Pakistan and India resulted in United Nations Security Council Resolution 1172 and economic sanctions on both states by a number of major powers, particularly the United States and Japan. By testing nuclear devices, Pakistan became the seventh nation to publicly test nuclear weapons.〔〔 Pakistan's second nuclear test, Chagai-II, followed on 30 May 1998. ==Background== (詳細はWP:FORK -- see Talk page --> Several historical and political events and personalities in the 1960s and early 1970s led Pakistan to gradually transition to a program of nuclear weapons development, that began in 1972.〔Ahmed S. Pakistan's Nuclear Weapons Program: Turning Points and Nuclear Choices. International Security 32, no. 4 (1999): 178–204〕 Plans for nuclear weapons testing started in 1974.〔〔〔 Chagai-I was the result of over two decades of planning and preparation, Pakistan becoming the seventh of eight nations that have publicly tested nuclear weapons.〔〔 The timing of Chagai-I was a direct response to India's second nuclear tests, Pokhran-II, also called ''Operation Shakti'', on 11 and 13 May 1998.〔〔2009〕 Chagai-I was Pakistan's first of two public tests of nuclear weapons. Pakistan's second nuclear test, Chagai-II, followed on 30 May 1998. In 2005, Benazir Bhutto testified that "Pakistan may have had an atomic device long before, and her father had told her from his prison cell that preparations for a nuclear test had been made in 1977, and he expected to have an atomic test of a nuclear device in August 1977."〔 However, the plan was moved on to December 1977 and later it was delayed indefinitely to avoid international reaction; thus obtaining deliberate ambiguity.〔 In an interview with Hamid Mir in ''Capital Talk'' which aired on Geo News in 2005, Dr. Samar Mubarakmand confirmed Bhutto's testimony and maintained that PAEC developed the design of an atomic bomb in 1978 and had successfully conducted a cold test after building the first atomic bomb in 1983. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Chagai-I」の詳細全文を読む スポンサード リンク
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