This chapter focuses on assimilability, which was the talked-about word of the new immigration policy established in the 1920s. It demonstrates that throughout the 19th century and into the opening decades of the 20th the experience of segregation and discrimination made some African Americans conceive of a life beyond the United States. Immigration of Chinese laborers had been restricted since the 1870s. The Chinese exclusion policy exhibits how group-based discrimination could be implemented and shows how this shaped the values carried by the United States in its overseas adventures. Congress broadened the restrictions on Chinese laborers to those in Hawaii and the Philippines. A system of national origin categorization is also discussed. The definition of membership enshrined in immigration law would haunt American nationalism abroad as well as at home for a long time.