While US-centred bilateralism and ASEAN-led multilateralism have largely dominated the post-Cold War regional security architecture in the Indo-Pacific, increasing doubts about their effectiveness have resulted in countries turning to alternative forms of cooperation, such as minilateral arrangements. Compared to multilateral groupings, minilateral platforms are smaller in size, as well as more exclusive, flexible and functional. Both China and the US have contributed to minilateral initiatives in the Indo-Pacific. In the case of the former, there is the Lancang-Mekong Cooperation mechanism-involving China, Cambodia, Laos, Myanmar, Thailand and Vietnam-established in 2015. In the case of the latter, there has been a revival of the Quadrilateral Security Dialogue in 2017-involving the US, Australia, Japan and India. This book examines the rise of these arrangements, their challenges and opportunities, as well as their impact on the extant regional security architecture, including on the ASEAN-led multilateral order. A valuable guide for students and policy-makers looking to understand the nature and development of minilateralism in the Indo-Pacific region.

Security Strategies of Middle Powers in the Asia Pacific examines what drives the different regional security strategies of four middle powers in the Asia Pacific: Australia, Indonesia, South Korea and Malaysia. Drawing on the extant middle power literature, the authors argue that the regional security strategies of middle powers could take two forms, namely, functional or normative. A functional strategy means that the middle power targets its resources to address a specific problem that it has a high level of interest in, while a normative strategy refers to a focus on promoting general behavioural standards and confidence building at the multilateral level. This book argues that whether a middle power ultimately employs a more functional or normative regional security strategy depends on its resource availability and strategic environment.

Drawing on insights from differentiation theory, this book examines the participation of middle powers in multilateralism. Taking Australia, Indonesia and South Korea as examples, the book examines these countries' roles in regional organizations, and particularly during the creation of the Asia-Pacific Economic Cooperation (APEC) and East Asia Summit. Through its analysis, the book argues that middle powers pursue dilution of major power stratificatory forces, as well as functionally differentiated roles for themselves in multilateral diplomacy. The book sets out a valuable new framework to explain and understand the behaviour of middle powers in multilateralism.

Security Strategies of Middle Powers in the Asia Pacific examines what drives the different regional security strategies of four middle powers in the Asia Pacific: Australia, Indonesia, South Korea and Malaysia. Drawing on the extant middle power literature, the authors argue that the regional security strategies of middle powers could take two forms, namely, functional or normative. A functional strategy means that the middle power targets its resources to address a specific problem that it has a high level of interest in, while a normative strategy refers to a focus on promoting general behavioural standards and confidence building at the multilateral level. This book argues that whether a middle power ultimately employs a more functional or normative regional security strategy depends on its resource availability and strategic environment.

While US-centred bilateralism and ASEAN-led multilateralism have largely dominated the post-Cold War regional security architecture in the Indo-Pacific, increasing doubts about their effectiveness have resulted in countries turning to alternative forms of cooperation, such as minilateral arrangements. Compared to multilateral groupings, minilateral platforms are smaller in size, as well as more exclusive, flexible and functional. Both China and the US have contributed to minilateral initiatives in the Indo-Pacific. In the case of the former, there is the Lancang-Mekong Cooperation mechanism-involving China, Cambodia, Laos, Myanmar, Thailand and Vietnam-established in 2015. In the case of the latter, there has been a revival of the Quadrilateral Security Dialogue in 2017-involving the US, Australia, Japan and India. This book examines the rise of these arrangements, their challenges and opportunities, as well as their impact on the extant regional security architecture, including on the ASEAN-led multilateral order. A valuable guide for students and policy-makers looking to understand the nature and development of minilateralism in the Indo-Pacific region.