Japan is emerging as a more prominent global and regional military power, defying traditional categorisations of a minimalist contribution to the US-Japan alliance, maintaining anti-militarism, seeking an internationalist role, or carving out more strategic autonomy. Instead, this Element argues that Japan has fundamentally shifted its military posture over the last three decades and traversed into a new categorisation of a more capable military power and integrated US ally. This results from Japan's recognition of its fundamentally changing strategic environment that requires a new grand strategy and military doctrines. The shift is traced across the national security strategy components of Japan Self-Defence Forces' capabilities, US-Japan alliance integration, and international security cooperation. The Element argues that all these components are subordinated inevitably to the objectives of homeland security and re-strengthening the US-Japan alliance, and thus Japan's development as international security partner outside the ambit of the bilateral alliance remains stunted. This title is also available as Open Access on Cambridge Core.

Is Japan re-emerging as a normal, or even a great, military power in regional and global security affairs? This Adelphi Paper assesses the overall trajectory of Japan’s security policy over the last decade, and the impact of a changing Japanese military posture on the stability of East Asia. The paper examines Japan’s evolving security debate, set against the background of a shifting international environment and domestic policymaking system; the status of Japan’s national military capabilities and constitutional prohibitions; post-Cold War developments in the US Japan alliance; and Japan’s role in multilateral regional security dialogue, UN PKO, and US-led coalitions of the willing. It concludes that Japan is undoubtedly moving along the trajectory of becoming a more assertive military power, and that this trend has been accelerated post-9/11. Japan is unlikely, though, to channel its military power through greatly different frameworks than at present. Japan will opt for the enhanced, and probably inextricable, integration of its military capabilities into the US Japan alliance, rather than pursuing options for greater autonomy or multilateralism. Japan’s strengthened role as the defensive shield for the offensive sword of US power projection will only serve to bolster US military hegemony in East Asia and globally.

Is Japan re-emerging as a 'normal', or even a great, military power in regional and global security affairs? This Adelphi Paper assesses the overall trajectory of Japan's security policy over the last decade, and the impact of a changing Japanese military posture on the stability of East Asia. The paper examines Japan's evolving security debate, set against the background of a shifting international environment and domestic policymaking system; the status of Japan's national military capabilities and constitutional prohibitions; post-Cold War developments in the US-Japan alliance; and Japan's role in multilateral regional security dialogue, UN PKO, and US-led 'coalitions of the willing'. It concludes that Japan is undoubtedly moving along the trajectory of becoming a more assertive military power, and that this trend has been accelerated post-9/11. Japan is unlikely, though, to channel its military power through greatly different frameworks than at present. Japan will opt for the enhanced, and probably inextricable, integration of its military capabilities into the US-Japan alliance, rather than pursuing options for greater autonomy or multilateralism. Japan's strengthened role as the defensive shield for the offensive sword of US power projection will only serve to bolster US military hegemony in East Asia and globally.

This book is an insider’s account of the problems facing the Self-Defense Forces (SDF), Japan’s postwar military, authored by the country’s leading submariner, Hideki Nakamura. Specializing in the submarine fleet, he became an ace commander, in addition to serving as an analyst and professor in security studies. During his career, he became increasingly troubled by the SDF’s ability to fight due to legal, political, and operational restrictions placed upon it. This book, a translation of his 2017 bestseller, is a must-read for those interested in Japan’s military and its ability to partner with other countries.

Japan’s U.S.–imposed postwar constitution renounced the use of offensive military force, but, as Sheila Smith shows, a nuclear North Korea and an increasingly assertive China have the Japanese rethinking that commitment, and their reliance on United States security. Japan has one of Asia’s most technologically advanced militaries and yet struggles to use its hard power as an instrument of national policy. The horrors of World War II continue to haunt policymakers in Tokyo, while China and South Korea remain wary of any military ambitions Japan may entertain. Yet a fundamental shift in East Asian geopolitics has forced Japan to rethink the commitment to pacifism it made during the U.S. occupation. It has increasingly flexed its muscles—deploying troops under UN auspices, participating in coercive sanctions, augmenting surveillance capabilities, and raising defense budgets. Article Nine of Japan’s constitution, drafted by U.S. authorities in 1946, claims that the Japanese people “forever renounce the use of force as a means of settling international disputes.” When Prime Minister Shinzo Abe broke this taboo by advocating revision of Article Nine, public outcry was surprisingly muted. The military, once feared as a security liability, now appears to be an indispensable asset, called upon with increasing frequency and given a seat at the policymaking table. In Japan Rearmed Sheila Smith argues that Japan is not only responding to increasing threats from North Korean missiles and Chinese maritime activities but also reevaluating its dependence on the United States. No longer convinced that they can rely on Americans to defend Japan, Tokyo’s political leaders are now confronting the possibility that they may need to prepare the nation’s military for war.

This work is a comprehensive analysis of the political and strategic relationship between Japan and China, each of which in important respects aspires to a global status commensurate with its economic and military might. These two great powers have to come to terms with a history of antagonism, each viewing the other as circumspectly as their small regional neighbors view them. Japan and Greater China reviews the domestic and international foundations of the foreign policies of the two countries, notably the politics of national identity. The strategic and economic underpinnings of the relationship are assessed not exclusively by reference to bilateral concerns but within the global and regional position and interests of the two powers.

Since the early 1990s, there has been a clear evolution in the military dimension of Japanese diplomacy. From Gulf War I in 1991 to the present day, an incremental but unmistakable acceptance of, and resort to, military dispatches has taken place, and yet crucially, Japan has not morphed into a traditional military power. Exploring Japan’s involvement in both Afghanistan and Iraq, this book examines the evolution and nature of the new civil-military dimension in Japanese foreign policy. It shows how foreign aid, Japan’s traditional non-military diplomatic tool, was merged with the operations of the Japanese Self-Defense Force in Iraq and the activities of NATO-ISAF forces in Afghanistan, and emphasises the centrality of civilian power to Japanese foreign policy and diplomacy. However, Dennis Yasutomo argues that while a new civil-military security culture is replacing the old merchant state culture of pacifism and anti-militarism, Japan does not yet qualify as a military "normal nation". Further, the book’s exploration of the increased utilization of military power within the context of civilian objectives and non-military diplomatic instruments, sheds light on the current build-up of Japanese military power in East and Southeast Asia amid territorial disputes and nuclear threats, and highlights the impact that Japan’s new civil-military diplomacy may have on wider international affairs in the 21st Century. Drawing on interviews with key actors in Tokyo, as well as with practitioners who have served on the ground in Iraq and Afghanistan, this book will have broad appeal to students and scholars working on Japanese politics and diplomacy, military and security studies and international relations.

In The Hidden Army, Tetsuo Maeda traces the evolution of Japan's post-World War II military - from the vestigial minesweeping fleet that remained after WWII demilitarization to a full-fledged army, navy, and air force sustained by the world's second-largest defense budget. Keeping an eye on the conflict between the pacifism of Japan's antiwar constitution and the country's substantial armed forces, the author describes how General Douglas MacArthur ordered the re-creation of the Japanese military during the Korean War, how the military expanded throughout the high-growth decades of the 1960s and 1970s, and how it came into greater international presence when the 1973 Arab oil embargo slowed economic growth, leading the Japanese military into an intimate involvement in United States Pacific strategy. He also examines how the Japanese military posture is changing in the post-Soviet era and the possible new roles and directions for the world's third-ranking military.

This book offers a new explanation of military power, highlighting the role of uncertainty in the creation of combat capabilities.