At the dawn of the Cold War, the U.S. Administration pushed reluctant Europeans to create a federation of democratic states. In doing so, they gave birth to an American Europe – a new political order protected by the U.S. military and buoyed by transatlantic trade. Europe now faces a stark reality. The Trump Administration dislikes NATO, considers the EU's trade policies "worse than China", and attacks the banning of nationalist parties. Many in the MAGA movement are similarly hostile to Europe, which they see as an over-regulated museum, a U.S. dependency powerless on the world-stage. This book explains why American Europe fell from favor. It weighs the prospects of alternative European political orders, including a Nationalist Europe, a Global Europe, and a European Europe. It argues that Europe needs to rethink its alliances, and Britain must decide where it belongs.