This is a new release of the original 1960 edition.

Here is a much-needed assessment and summing-up on four current strategic situation by B. H. Liddell Hart, the leading military analyst of our time. Taking a clear, hard look at Western defense capabilities and strategic planning, particularly as they are embodied in NATO, he has come up with suggestions for radical but vital revisions in our defense policies. Fifteen years have elapsed since Captain Liddell Hart forecast the consequences of atom-bomb diplomacy. Now, as the NATO powers move uneasily forward in the 1960’s, he shows how the development of the H-bomb—and, indeed, the multiplication in general of nuclear weapons on both sides—has become on the one hand, increasingly self-inhibiting, and, on the other, increasingly precarious as a protective insurance policy, especially in view of the development of log-range missiles. The natural consequences of the current nuclear parity is nuclear nullity. Thus, the nuclear deterrent, in which the West has put so much trust, is fading except as a deterrent to its own kind of action. But the Western powers have not yet come to grips with the problem of finding an adequate and effective replacement for this “fading deterrent.” As a result, the West now finds itself gravely hampered in any attempt to resist the more subtle forms of aggression and pressure. Having carefully analyzed the ailment, the author offers a hopeful cure, demonstrating how the weakness of the West’s present position can be remedied without an intolerable outlay in strain and cost.

This open access volume surveys the state of the field to examine whether a fifth wave of deterrence theory is emerging. Bringing together insights from world-leading experts from three continents, the volume identifies the most pressing strategic challenges, frames theoretical concepts, and describes new strategies. The use and utility of deterrence in today’s strategic environment is a topic of paramount concern to scholars, strategists and policymakers. Ours is a period of considerable strategic turbulence, which in recent years has featured a renewed emphasis on nuclear weapons used in defence postures across different theatres; a dramatic growth in the scale of military cyber capabilities and the frequency with which these are used; and rapid technological progress including the proliferation of long-range strike and unmanned systems. These military-strategic developments occur in a polarized international system, where cooperation between leading powers on arms control regimes is breaking down, states widely make use of hybrid conflict strategies, and the number of internationalized intrastate proxy conflicts has quintupled over the past two decades. Contemporary conflict actors exploit a wider gamut of coercive instruments, which they apply across a wider range of domains. The prevalence of multi-domain coercion across but also beyond traditional dimensions of armed conflict raises an important question: what does effective deterrence look like in the 21st century? Answering that question requires a re-appraisal of key theoretical concepts and dominant strategies of Western and non-Western actors in order to assess how they hold up in today’s world. Air Commodore Professor Dr. Frans Osinga is the Chair of the War Studies Department of the Netherlands Defence Academy and the Special Chair in War Studies at the University Leiden. Dr. Tim Sweijs is the Director of Research at The Hague Centre for Strategic Studies and a Research Fellow at the Faculty of Military Sciences of the Netherlands Defence Academy in Breda.

Marked changes in the balance of power between states in the international system are generally seen by IR scholars as among the most common causes of war. This book explains why such power shifts lead to war breaking out in some cases, but not in others. In contrast to existing approaches, this book argues that the military strategy of declining states is the key determinant of whether power shifts result in war or pass peacefully. More specifically, Dong Sun Lee argues that the probability of war is primarily a function of whether a declining state possesses a ‘manoeuvre strategy’ or an ‘attrition strategy’. The argument is developed through the investigation of fourteen power shifts among great powers over the past two centuries. Shifts in the balance of power and the attendant risks of war remain an enduring feature of international politics. This book argues that policymakers need to understand the factors influencing the risk of war as a result of these changes, in particular the contemporary shifts in power resulting from the rise of China and from the growth of nuclear proliferation.

Acheson was President Harry Truman's secretary of state, the American father of NATO and active in US foreign policy after World War II. He was also a Democratic Party activist in Eisenhower's presidency and an advisor in the Kennedy, Johnson and Nixon eras. This charts his post-secretarial career.

For close to sixty years, the United States has maintained alliances with Japan and South Korea that have included a nuclear umbrella, guaranteeing their security as part of a strategy of extended deterrence. Yet questions about the credibility of deterrence commitments have always been an issue, especially when nuclear weapons are concerned. Would the United States truly be willing to use these weapons to defend an ally? In this book, Terence Roehrig provides a detailed and comprehensive look at the nuclear umbrella in northeast Asia in the broader context of deterrence theory and U.S. strategy. He examines the role of the nuclear umbrella in Japanese and South Korean defense planning and security calculations, including the likelihood that either will develop its own nuclear weapons. Roehrig argues that the nuclear umbrella is most important as a political signal demonstrating commitment to the defense of allies and as a tool to prevent further nuclear proliferation in the region. While the role of the nuclear umbrella is often discussed in military terms, this book provides an important glimpse into the political dimensions of the nuclear security guarantee. As the security environment in East Asia changes with the growth of North Korea's capabilities and China's military modernization, as well as Donald Trump's early pronouncements that cast doubt on traditional commitments to allies, the credibility and resolve of U.S. alliances will take on renewed importance for the region and the world.