The 1940 and 1950s were a pivotal moment in transatlantic relations. It is often cast as the time when the global power-shift from Europe to the US was complete and a new transatlantic world emerged; one that recently many see coming to an end. The seminar will consider these early decades aiming to understand the ideas, culture and political logic that shaped them. On this basis we will think about traditions and narratives that have formed since and see how they feature in today's understanding and memory of the transatlantic post war moment.