This book analyzes current security challenges in Asia (understood in its broader Indo–Pacific sense) with the aim of capturing the major shifts in the balance of power involving regional actors. Through the lenses of IR theory, this book seeks to provide insights into the consequences of the transition of power from the United States to China. The growing power of China and its impact on both neighboring countries and the international system as a whole, as well as its reception by the United States, have been of key importance to the development of security and international studies. By presenting the case studies of regional security challenges from a multidimensional perspective, this book analyzes both the stages of the maturity of powers and their satisfaction within the existing system.