1. Introduction.- Part I. From Joint Control to the Border on the Island.- 2. Sakhalin under Control of the Russian Empire and Soviet Union.- 3. Sakhalin/Karafuto under Control of the Japanese Empire.- Part II. Postwar Population Movements.- 4. Coexistence, Repatriation and Those Left Behind (1945-end of the 1950s).- 5. From the End of the 1950s to the end of the 1980s: New Wave of Migration of the Population and the Closure of Korean Schools in Sakhalin.- Part III: Contemporary Repatriation.- 6. Contemporary Repatriation to Japan and South Korea: Formation of new diasporas (New Life as Migrants).- 7. Education, Language, and Identity of the Young Generation of Returnees.- 8. Conclusions. Appendices. Index.