The East Asia region has drawn global attention. China, Japan, the Korean Penisula and the ASEAN countries have been developing their economies and strenghtening their participation in global economy. Contrary to this smooth process, the region posesses a number of unresolved territorial issues and suffers from a lack of security complex. The volume presents a series of papers dedicated to the East Asian countries' development. The volume is divided into three sections: dimensions of regionalism in East Asia, China's external and internal development and Japanese domestic affairs.