This book makes systematic analysis of the United States’ Asia-Pacific Rebalancing Strategy against the rise of China. The book has four chapters. The first chapter examines the origin and background of the Rebalancing. The second and third chapters addresses the Chinese and Japanese perspectives of the rebalancing. The last chapter explains the implications of the rebalancing strategy and suggests countermeasure for ROK national security. Hopefully this book will help readers understand the US Asia-Pacific Rebalancing Strategy and provide a good guide for policy-decision makers. [Introduction] Sang Hyun Lee [Chapter I] The US Rebalancing Policy toward the Asia-Pacific Sang Hyun Lee [Chapter II] China’s Response to the US Rebalancing Hyun-jeong Yoo [Chapter III] Japan’s Response to the US Rebalancing Myon-woo Lee [Chapter IV] The US Rebalancing Policy and ROK Chul-ho Chong