This open access book aims to review the history, achievements, and challenges of trilateral cooperation among China, Japan, and South Korea in a systematic way. It offers numerous perspectives to explain the emergence of trilateral institution-building processes and the fluctuations of trilateral cooperation, and underscores three countries' respective policy stances towards the building of the triangle. The evolvement of political and economic ties among China, Japan, and South Korea has vital importance to the peace and prosperity of East Asia. Recent years have witnessed the ups and...