This chapter covers the long story of migration and settlement in the borderlands of Germany and Poland. It explores the difference between migration and settlement, along with modern German history and Polish space, 1772–1871, and Flottwell. The argument for Poland as German colonial space is explored, alongside Max Sering’s early life. It also explores Alsace as borderland, Gustav Schmoller, and the Historical School. It covers Sering’s six month journey throughout North America and his subsequent analysis of homesteading and the settlement of the frontier. Sering’s discovery of the concept of inner colonization, Indigenous, Métis, and Removal vs Assimilation are all discussed.