This collection examines the extent to which nuclear weapons modernization has become a significant point of concern and consideration in international security. Recent statements and substantial investments by nuclear weapon possessor states in the upkeep and modernization of their nuclear postures – particularly the United States, Russia and China – illustrate a return of primacy and the salience of nuclear forces in international politics. The upgrading of systems, the introduction of new capabilities, the intermingling of new technologies, and the advancement of new strategic models, are all indicative of their elevation in importance and reliance. With contributions from leading thinkers in the nuclear weapons domain, this book elucidates the global strategic and policy implications such modernization efforts by the above-mentioned states will have on international security. In unpacking and conceptualizing this developing source of potential (in)security and tension, the collection not only provides a technical context, but also frames the likely effects modernization could have on the relations between these nuclear weapon powers and the larger impact upon efforts to curb nuclear weapons – both in terms of horizontal and vertical proliferation. The chapters have been arranged so as to inform a variety of stakeholders, from academics to policy-makers, by connecting analytical and normative insights, and thereby, advancing debates pertaining to where nuclear modernization sits as a point of global security consternation in the 21st century.

Deterrence remains a primary doctrine for dealing with the threat of nuclear weapons in the 21st century. The author reviews the history of nuclear deterrence and calls for a renewed intellectual effort to address the relevance of concepts such as first strike, escalation, extended deterrence, and other Cold War-era strategies in today's complex world of additional superpowers, smaller nuclear powers, and nonstate actors.

“An excellent contribution to the debate on the future role of nuclear weapons and nuclear deterrence in American foreign policy.” ―Contemporary Security Policy This book is a counter to the conventional wisdom that the United States can and should do more to reduce both the role of nuclear weapons in its security strategies and the number of weapons in its arsenal. The case against nuclear weapons has been made on many grounds—including historical, political, and moral. But, Brad Roberts argues, it has not so far been informed by the experience of the United States since the Cold War in trying to adapt deterrence to a changed world, and to create the conditions that would allow further significant changes to U.S. nuclear policy and posture. Drawing on the author’s experience in the making and implementation of U.S. policy in the Obama administration, this book examines that real-world experience and finds important lessons for the disarmament enterprise. Central conclusions of the work are that other nuclear-armed states are not prepared to join the United States in making reductions, and that unilateral steps by the United States to disarm further would be harmful to its interests and those of its allies. The book ultimately argues in favor of patience and persistence in the implementation of a balanced approach to nuclear strategy that encompasses political efforts to reduce nuclear dangers along with military efforts to deter them. “Well-researched and carefully argued.” ―Foreign Affairs

These essays by nuclear policy experts provide “a speculative but serious and well-informed journey through a variety of scenarios and contingencies” (Foreign Affairs). Recent decades have seen a slow but steady increase in nuclear armed states, and in the seemingly less constrained policy goals of some of the newer “rogue” states in the international system. The authors of On Limited Nuclear War in the 21st Century argue that a time may come when one of these states makes the conscious decision that using a nuclear weapon against the United States, its allies, or forward deployed forces in the context of a crisis or a regional conventional conflict may be in its interests. They assert that we are unprepared for these types of limited nuclear wars and that it is urgent we rethink the theory, policy, and implementation of force related to our approaches to this type of engagement. Together they critique Cold War doctrine on limited nuclear war and consider a number of the key concepts that should govern our approach to limited nuclear conflict in the future. These include identifying the factors likely to lead to limited nuclear war; examining the geopolitics of future conflict scenarios that might lead to small-scale nuclear use; and assessing strategies for crisis management and escalation control. Finally, they consider a range of strategies and operational concepts for countering, controlling, or containing limited nuclear war. “A series of trenchant essays that deconstruct a critical national security challenge that most of us wish did not exist. Assembling a star-studded cast of scholars, analysts, and policy practitioners, Larsen and Kartchner have produced some of the most important new thinking on an old topic.” —H-Diplo

The protection of the homeland is the top priority for U.S. national security strategy. Strategic defense, however, has been an overlooked dimension in the vast literature on the U.S. strategic posture, with even less attention given to the necessity and dynamics of security collaboration within North America. Drawing on the expertise of scholars from the U.S., Canada and Mexico, the book offers a wide range of perspectives on recent trends in, and future prospects for, the military and political evolution of North American strategic defense. North American strategic defense is a topic too often taken for granted: as this excellent book shows, that is a mistake. In the 21st century, perhaps even more than the 20th, it will be an issue of cardinal importance to both the United States and Canada. Eliot A. Cohen Robert E. Osgood Professor of Strategic Studies, Johns Hopkins School of Advanced International Studies NORAD’s binational command is unique, and this timely and ambitious book examines its continued relevance to North American defense against a host of new global threats. It broadens the focus of what we mean by North American defense, contemplates how we might include Mexico in various regional security arrangements, and considers the dynamics of expanded North American interdependence in the Trump era. Laura Dawson Director of the Canada Institute, Woodrow Wilson International Center for Scholars North American Strategic Defense in the 21st Century is an important book. This edited volume brings together a galaxy of stars, both rising and established, with outstanding credentials regarding NORAD and associated matter in the study of security. This original and well-written volume is the first of its kind since the Cold War – long overdue and impressive in contents. The chapters cover both panoramic issues and more specific matters, and the collection is essential reading for academics, policy-makers and the general public. Patrick James Dornsife Dean’s Professor, School of International Relations, University of Southern California

"This report argues that nuclear weapons are still important to U.S. national security, and it outlines a set of recommendations for how the Department of Defense should organize for nuclear missions in the twenty-first century. After first chronicling a failed effort in 2007 to develop a "balanced and integrated" package of policy initiatives on nuclear issues, the report provides a rationale for why the next administration should chose a strategic option as it confronts a number of nuclear challenges, ranging from the growing risk of nuclear terrorism to the proliferation risks associated with the expansion of nuclear energy to the role of nuclear weapons in a proliferating world."--CSIS web site

Exploring how the United States manages its still-powerful nuclear arsenal Arms control agreements and the end of the Cold War have made the prospect of nuclear war a distant fear for the general public. But the United States and its principal rivals—China and Russia—still maintain sizable arsenals of nuclear weapons, along with the systems for managing them and using them if that terrible day ever comes. Managing U.S. Nuclear Operations in the 21st Century focuses on how theories and policies are put into practice in managing nuclear forces in the United States. It addresses such questions as: What have been the guiding priorities of U.S. nuclear strategy since the end of the Cold War? What nuclear attack options would the president have during a war? How are these war plans developed and reviewed by civilian and military leaders? How would presidential orders be conveyed to the uniformed men and women who are entrusted with U.S. nuclear weapons systems? And are these communications systems and supporting capabilities vulnerable to disruption or attack? The answers to such questions depend on the process by which national strategy for nuclear deterrence, developed by civilian leaders, is converted into nuclear war plans and the entire range of procedures for implementing those plans if necessary. The chapter authors have extensive experience in government, the armed forces, and the analytic community. Drawing on their firsthand knowledge, as well as the public record, they provide unique, authoritative accounts of how the United States manages it nuclear forces today. This book will be of interest to the national security community, particularly younger experts who did not grow up in the nuclear-centric milieu of the Cold War. Any national security analyst, professional, or government staffer seeking to learn more about nuclear modernization policy and the U.S. nuclear arsenal should be interested in this book. It should also be of interest to professors and students who want a deep understanding of U.S. nuclear policy.

This book examines the evolution of the Euro-Atlantic security system, from cooperation to rivalry and crisis, since the beginning of the 21st century. By highlighting the causes, manifestations and international consequences of this evolution, the author describes a stage of crisis in the security system, characterized by increasing rivalry for spheres of influence, militarization of policies and the suspension of cooperation due to the growing divergence between the interests of the West – now including the Central European states – and Russia, leading to a subsequent reconfiguration of the world order. Adopting a neo-realistic approach, the author demonstrates that members of the Euro-Atlantic security system, irrespective of the values they claim to hold, are guided in their actions on the international stage by clearly defined interests. The first part of the book analyses the nature of the Euro-Atlantic security system, while the second part illustrates the limited success of Euro-Atlantic collaboration, for example in combating terrorism. Lastly, the third part discusses the consequences of the crisis, such as the conflict in Ukraine, and prospects for the future evolution of the Euro-Atlantic security system.

This anthology argues that facing the diverse threats in the 'new world disorder' requires a new look and new approaches. The requirement is to establish that contemporary deterrence demands replacing the old 'nuclear theology' with new policy and strategy to deal with the myriad state, non-state, and trans-national nuclear and non-nuclear menaces that have heretofore been ignored or wished away.

This book describes the evolving CBRN risk landscape and highlights advances in the “core” CBRN technologies, including when combined with (improvised) explosive devices (CBRNe threats). It analyses how associated technologies create new safety and security risks, challenging certain assumptions that underlie current control regimes. The book also shows how technologies can be enablers for more effective strategies to mitigate these risks. 21st-century safety and security risks emanating from chemical, biological, radiological and nuclear materials – whether resulting from natural events, accidents or malevolent use - are increasingly shaped by technologies that enable their development, production or use in ways that differ from the past. Artificial intelligence, the use of cyberspace, the revolution in the life sciences, new manufacturing methods, new platforms and equipment for agent delivery, hypersonic weapons systems, information tools utilised in hybrid warfare – these and other technologies are reshaping the global security environment and CBRN landscape. They are leading to a growing potential for highly targeted violence, and they can lead to greater instability and vulnerability worldwide. At the same time, technology offers solutions to manage CBRN risks. Examples are faster detection, more accurate characterisation of the nature and origin of CBRN agents, new forensic investigation methods, or new medical treatments for victims of CBRN incidents. New educational concepts help to foster a culture of responsibility in science and technology and strengthen governance. New training methods help develop practical skills to manage CBRN risks more effectively. The book concludes that there is a growing need for a holistic framework towards CBRN risk mitigation. Traditional arms control mechanisms such as global, regional or bilateral treaties and export controls are still needed, as they provide a necessary legal and institutional framework. But laws and technology denial alone will not suffice, and institutional mechanisms can at times be weak. Given the pace of technological progress and the diffusion of critical knowledge, tools and materials, policymakers must accept that CBRN risks cannot be eliminated altogether. Instead, society has to learn to manage these risks and develop resilience against them. This requires a “softer”, broadly based multi-stakeholder approach involving governments, industry, the research and development communities, educators, and civil society. Furthermore, educating policymakers that cutting-edge technologies may seriously affect global strategic stability could create incentives for developing a more creative and contemporary arms control strategy that fosters cooperation rather than incremental polarisation.