This book provides answers to broader questions that are relevant to the global emerging peace architecture. The book is divided into three parts: global, Indo-Pacific and the Korean Peninsula. The first part analyses the competing world views of the U.S, China, Japan, and Korea and the evolvement of UN debates on global and regional security, with special emphasis on the Indo-Pacific and the Korean Peninsula. The second part concerns major bilateral or multilateral security issues facing Indo-Pacific countries and their UN debates in this regard. In particular, with new developments in the Indo-Pacific, such as the Quad process involving the Australia-India-Japan-United States and an anticipation expansion of the Group of Seven (G-7), chapters analyse how these mechanisms expand their focus within the scope of Indo-Pacific power politics. Part three focuses on the UN centered debates on two Koreas and their strategic fallouts at regional and global levels. Examining the security order evolving around the politics of the Indo-Pacific regions and Korean Peninsula and analysing the relevance of the UN and its mechanisms, this book will be of interest to researchers studying International Relations, Security Studies, Asian Studies, in particular Korean Studies and the Indo-Pacific.