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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク High-alert nuclear weapon ： ウィキペディア英語版 High-alert nuclear weapon High-alert nuclear weapon(s) commonly refers to a launch-ready ballistic missile(s) armed with a nuclear warhead(s) whose launch can be ordered (through the National Command Authority) and executed (via a nuclear command and control system) within 15 minutes or less. This can include any weapon system capable of delivering a nuclear warhead in this time frame. Virtually all ''high-alert nuclear weapons'' are possessed by the U.S. and Russia. Both nations use automated command and control systems in conjunction with their early warning radar and/or satellites to facilitate the rapid launch of their land-based intercontinental ballistic missiles (ICBMs) and some submarine-launched ballistic missiles (SLBMs).〔Blair, Bruce. "The Logic of Accidental Nuclear War". © The Brookings Institution 1993.〕 Fear of a "disarming" nuclear first-strike that would destroy their command and control systems and nuclear forces led both nations to develop "launch-on-warning" capability, which requires high-alert nuclear weapons able to launch on a 30-minute (or less) tactical warning, the nominal flight time of ICBMs traveling between the U.S. and Russia. A definition of "high-alert" requires no specific explosive power of the weapon carried by the missile or weapon system, but in general, most high-alert missiles are armed with strategic nuclear weapons with yields equal to or greater than 100 kilotons.〔Starr, Steven. ( "An Explanation of Nuclear Weapons Terminology" ). © Nuclear Age Peace Foundation 2008.〕 The U.S.〔Correll, J. ( How the Air Force Got the ICBM" ). © Air Force Magazine Online (Journal of the Air Force Association) 2005, July, Vol. 88, No. 7.〕 and Russia〔NTI online database. ( "Russia: History of Soviet/Russian ICBMs" ).〕 have for decades possessed ICBMs and SLBMs capable of being launched in only a few minutes. The U.S. and Russia currently have a total of 900 missiles and 2581 strategic nuclear warheads on high-alert, launch-ready status. The total explosive power of these weapons is about 1185 Mt (megatons, or 1.185 billion tons of TNT equivalent explosive power).〔Starr, Steven. "High-alert nuclear weapons: examining the risks". SGR Newsletter, No. 26, Autumn 2008, in press.〕 ==Notes and references== 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「High-alert nuclear weapon」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.