This chapter argues that German-speaking educators in Buenos Aires took advantage of transatlantic support from Germany while navigating among their own interests in community, ethnicity, and belonging in Argentina. Focusing on the circulation of teachers, the flow of financial support from Germany, and a system that offered both Argentine and German diplomas, it offers new perspectives on how constructions of European ethnicity and Argentine belonging developed in a transnational context. For those in Germany, supporting schools and maintaining ethnic Germans within a territorially unbounded German nation reflected the nationalist aspiration to compete with other European empires on the global stage. For those in Buenos Aires, however, the same transatlantic relationship was oriented toward another set of expectations about the future. They instead believed that European support of German-Spanish bilingual schools would help educators and families succeed in their goal of pushing for a pluralist, multilingual society.