Meeting the Challenges of a New Nuclear Age
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Dædalus Journal of the American Academy of Arts & Sciences Spring 2020 Meeting the Challenges of a New Nuclear Age Robert Legvold & Christopher F. Chyba, guest editors with Steven E. Miller Anya Loukianova Fink · Olga Oliker Li Bin · Brad Roberts · Linton F. Brooks Jon Brook Wolfsthal · James Cameron James M. Acton · Harald Müller Carmen Wunderlich · James Timbie Nina Tannenwald Estimated Nuclear Warhead Inventories, 2019 Russia 6,500 United Kingdom 215 North Pakistan France Korea United States 150 30 6,185 300 Israel 80 China 290 India 140 Dædalus Journal of the American Academy of Arts & Sciences “Meeting the Challenges of a New Nuclear Age” Volume 149, Number 2; Spring 2020 Robert Legvold & Christopher F. Chyba, Guest Editors Phyllis S. Bendell, Managing Editor and Director of Publications Peter Walton, Associate Editor Heather M. Struntz, Assistant Editor Committee on Studies and Publications John Mark Hansen, Chair; Rosina Bierbaum, Johanna Drucker, Gerald Early, Carol Gluck, Linda Greenhouse, John Hildebrand, Philip Khoury, Arthur Kleinman, Sara Lawrence-Lightfoot, Alan I. Leshner, Rose McDermott, Michael S. McPherson, Frances McCall Rosenbluth, Scott D. Sagan, Nancy C. Andrews (ex officio), David W. Oxtoby (ex officio), Diane P. Wood (ex officio) Inside front cover: Inventory numbers include deployed warheads, warheads in the military stockpile, and retired but intact warheads waiting for dismantlement. Source: Hans M. Kristensen and Matt Korda, “Status of World Nuclear Forces,” Federation of American Scientists, May 2019 update. Contents 6 Introduction: The Search for Strategic Stability in a New Nuclear Era Robert Legvold & Christopher F. Chyba 17 A Nuclear World Transformed: The Rise of Multilateral Disorder Steven E. Miller 37 Russia’s Nuclear Weapons in a Multipolar World: Guarantors of Sovereignty, Great Power Status & More Anya Loukianova Fink & Olga Oliker 56 The Revival of Nuclear Competition in an Altered Geopolitical Context: A Chinese Perspective Li Bin 69 On Adapting Nuclear Deterrence to Reduce Nuclear Risk Brad Roberts 84 The End of Arms Control? Linton F. Brooks 101 Why Arms Control? Jon Brook Wolfsthal 116 What History Can Teach James Cameron 133 Cyber Warfare & Inadvertent Escalation James M. Acton 150 New Technologies & Strategic Stability Christopher F. Chyba 171 Nuclear Disarmament without the Nuclear-Weapon States: The Nuclear Weapon Ban Treaty Harald Müller & Carmen Wunderlich 190 A Way Forward James Timbie 205 Life beyond Arms Control: Moving toward a Global Regime of Nuclear Restraint & Responsibility Nina Tannenwald 222 Conclusion: Strategic Stability & Nuclear War Christopher F. 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Outside the United One Rogers Street, Cambridge MA 02142-1209. States and Canada add $24 for postage and han- Periodicals postage paid at Boston MA and at dling. Prices subject to change without notice. additional mailing offices. Institutional subscriptions are on a volume-year The typeface is Cycles, designed by Sumner basis. All other subscriptions begin with the Stone at the Stone Type Foundry of Guinda CA. next available issue. Each size of Cycles has been sep arately designed Single issues: $15 for individuals; $38 for insti- in the tradition of metal types. tutions. Outside the United States and Canada, add $6 per issue for postage and handling. Prices subject to change without notice. Introduction: The Search for Strategic Stability in a New Nuclear Era Robert Legvold & Christopher F. Chyba he world has entered a new nuclear era whose characteristics and chal- lenges differ markedly from those of the Cold War. No longer dominat- T ed by only two nuclear superpowers (even if Russia and the United States still possess the lion’s share of nuclear weapons), its dangers are at least as great as those during the Cold War, and made more so by a general unawareness of the multiplying ways a nuclear war could begin. Five nuclear-armed states–China, India, and Pakistan, in addition to Russia and the United States with its allies Brit- ain and France–now set the contours of a multisided matrix, determine whether and when nuclear weapons will be used, and bear the responsibility for deciding whether and by what means the risk of nuclear war can be averted. Other states with nuclear weapons, such as North Korea, further complicate the picture by cre- ating additional pathways to nuclear conflict and generating U.S. responses that stir Russian and Chinese opposition and counteractions. Israel’s nuclear arsenal remains recessed and opaque. Beyond this changing geostrategic topography, ad- vances in weapons technology and the opening of new frontiers, such as cyber capabilities and artificial intelligence, make a shifting environment still more complex. The collapse of the Soviet Union and, with it, the fading fear of nuclear war led to a general disregard of nuclear issues in key relationships, with the exception of the security of nuclear holdings in former Soviet Republics, including Russia. Nu- clear states and their defense planners continued to tend to their nuclear forces while adjusting their role to a reality no longer centered on the prospect of a war between two nuclear hegemons. Aided by the arms control agreements between the superpowers in the last years of the Cold War and the first years after, and by the positive hopes for a new and constructive relationship between the Unit- ed States and Russia, the world’s nuclear states welcomed this less tense reality. © 2020 by the American Academy of Arts & Sciences 6 https://doi.org/10.1162/DAED_e_01786 Robert Legvold & Christopher F. Chyba Attention in the United States shifted to threats associated with the nuclear ambi- tions of countries like Iran and North Korea, and to the possibility of nuclear ter- rorism. True, by the turn of the century, Russia and China had begun to empha- size what each saw as elements of an ongoing U.S. nuclear threat, and the United States now included both in the scenarios guiding its efforts to refine its extend- ed deterrence commitments in Europe and Asia. But this recrudescence of con- cern over nuclear trends largely flowed along channels of familiar thought rath- er than turning national attention to the formidable new challenges of a multipo- lar nuclear world. he evolution from what was fundamentally a two-sided order into to- day’s more multifarious setting adds complexity and gives a new dimen- T sion to familiar challenges and dangers.