This book explores the possible routes to transform the current hostile dynamic between North Korea and South Korea into a lasting peace on the Korean Peninsula. Through critical assessments of the current political and security conditions in the Korean Peninsula and Northeast Asia, the book presents innovative ideas for peacebuilding, with a particular focus on denuclearizing the Korean Peninsula.Focusing on issues such as North Korea’s nuclear proliferation, strategies for peaceful coexistence and a peace regime between the two Korean states, and the quest for peace and stability in Northeast Asia, the chapters examine the interests of the four surrounding powers concerning the Korean issue and their roles in establishing a peaceful regime in the Korean Peninsula and Northeast Asia. Providing expert scholarship from the United States, Korea, and Japan, it provides novel information, diverse viewpoints, thoughtful analysis, and valuable insights on the issues surrounding the Korean Peninsula and security in Northeast Asia.Highlighting the plausible pathways to establish a peace regime in both Korea and Northeast Asia while considering the roles of neighboring powers in this process, this book will be a valuable resource to students and scholars of Korean politics, security studies, and peace studies.