This original book systematically examines Japan’s defense engagement with its strategic partners since the end of the Cold War based on Japan’s national security strategy. The author maps three defense engagement activities: military exercises, capacity building, and defense equipment transfer and technology cooperation – and subsequently evaluates these against the three national security objectives: deterrence, cooperative security, and the Free and Open Indo-Pacific vision. The book asks two important research questions: why is Japan active in defense engagement with the armed forces of its strategic partners? And, what purposes do Japan’s self-defense forces pursue? Through the ten carefully selected cases of strategic partners: Australia, India, Indonesia, Vietnam, the Philippines, ASEAN, the UK, France, NATO, and the EU, the book follows a structured, cross-case comparison based on the analytical framework developed for the research. It also discusses the evolution of Japan’s postwar defense policy, providing a solid background for the case studies. The book overall argues that, while the Japan-US alliance is still the most indispensable, Japan’s strategic partnerships are a valuable instrument of deterrence that contributes to Japan’s national security objectives. In order to more effectively pursue these objectives and thus secure the national interest, Japan must pursue a purpose-driven defense engagement.

Examining the pivotal relationship between Japan and Southeast Asia, as it has changed and endured into the Indo-Pacific Era

Most recently, Japan’s Defence Minister Kishi said the international community must be aware of a possible Crimea-style invasion of Taiwan by China. With the objective of realizing a free and open Indo-Pacific, the six-nation naval exercise that took place near Okinawa and the South China Sea among Japan, the US, the UK, the Netherlands, Canada, and New Zealand between 2 and 9 October for air defence, anti-submarine warfare, communications, and replenishment-at-sea must be understood against the background of this intense military environment.

The Courteous Power seeks to provide a nuanced view of the current relationship between Japan and Southeast Asia. Much of the current scholarship on East–Southeast Asian engagement has focused on the multidimensional chess game playing out between China and Japan, as the dominant post-imperialist powers. Alternatively, there has been renewed attention on ASEAN and other Southeast Asian–centered initiatives, explicitly minimizing the influence of East Asia in the region. Given the urgency of understanding the careful balance in the Indo-Pacific region, this volume brings together scholars to examine the history and current engagement from a variety of perspectives, ranging from economic and political, to the cultural and technological, while also focusing more clearly on the specific relationship between the region and Japan.

This is an in-depth analysis of the U.S.-Japan security alliance and its implications for Japan and the Asia-Pacific region. It moves away from the official line that the alliance is a vital aspect of Japan's security policy and introduces issues and arguments that are often overlooked: American security policy has failed to achieve its goals; Japan's interests are not fully served by the alliance; the alliance itself is a source of instability in the region; and the arrangement has placed constraints on Japan's own political development. The author measures current developments in U.S. foreign policy against Japan's role in the region and Japan's own political development. He assesses the consequences of the alliance for the current regional situation in Northeast Asia, looks at future policy options for Japan, and makes the case for a neutralist security policy.