International migration and other types of cross-border movement are becoming an important part of international relations in Northeast Asia. In this pioneering study, experts on China, Japan, Korea, Mongolia, and Russia examine the political, economic, social, and cultural dimensions of the interaction between border-crossing individuals and host communities. The book highlights the challenges facing national and local leaders in each country and suggests needed changes in national and international policies. The authors analyze population trends and migration patterns in each country: Chinese migration to the Russian Far East; Chinese, Koreans, and Russians in Japan; North Koreans in China; and migration issues in South Korea and Mongolia. The book introduces a wealth of empirical material and insight to both international migration studies and Northeast Asian area studies.