How do people who were part of an extant socioeconomic and political system adapt in another world order? This book ethnographically addresses the two complementary processes of Pontic Greeks' ethnic displacement over a century: diaspora and repatriation. Longitudinal data is employed to argue that the concept of 'repatriation' should be construed as 'affinal', in the sense of 'return to each other', rather than 'return to a place'. The book documents the impact of multiple persecutions under Stalinism on the formation of a Soviet Greek collective identity. It explores the meaning of 'repatriation' and the emergence of a European identity as an option. The acquisition of this novel identity becomes a privilege entailing the right to move across and within the borders of Europe.