Following the catastrophe of the First World War, which many saw as the result of nationalist rivalries, the immediate postwar period was dominated by concerns regarding European decadence and by dreams of a united Europe that would be able to regain its geopolitical power in a new global landscape increasingly dominated by the United States of America and by Russia. The French writer Paul Valéry set the agenda by arguing for a genuinely “European spirit” that had arisen out of the confluence of classical antiquity and Christianity. He was followed in this endeavor to champion a distinctly European spirit by writers such as Hugo von Hofmannsthal and Hermann von Keyserling. Chapter 6 charts the development of this idea of a European spirit, as well as the various plans for a politically united Europe, most notably as Richard Coudenhove-Kalergi’s proposals for what he termed “Pan-Europe.” The chapter reveals the cultural supremacism that taints many of these attempts to identify a European spirit, as well as emphasis placed on the need for European to re-establish its geopolitical and geo-cultural influence.