The concluding chapter of the book summarises the main findings of the present study and puts these in the conceptual and historiographical framework of the introduction of the book. This chapter reconnects to the central question of the present study and shows how and why the developments in the transatlantic management of economic and monetary affairs created decisive political momentum for bold Franco-German (supranational) initiatives in European integration, but also which transatlantic and European ideational and emotional undercurrents co-steered this development. Furthermore, this chapter highlights the increasingly central role of Western Germany in this history.