In 1990, the signature of the Transatlantic Declaration marked the formal recognition of the European Community as the third main element in the transatlantic institutional architecture, alongside NATO and bilateral relationships. Five years later, US-EU relations took another major step forward with the adoption of a ‘New Transatlantic Agenda’ (NTA). This volume puts this evolution into historical perspective by identifying the enduring features of the relationship. At the dawn of the Bush administration and in the wake of the Nice Treaty, it also makes a bold attempt at assessing the current state of US-EU relations, notably by taking stock of the changes introduced via the New Transatlantic Agenda. Aimed at practitioners and academics alike, and going well beyond a general overview of transatlantic relations, it first explores the evolution of structures and processes in US-EU relations while paying special attention to the policy-shaping and policy-making strategies of public and private actors. Focusing on the post-NTA record, it then endeavours to assess, explain and evaluate the policy outcomes of EU-US relations. Leading authors and practitioners in the field took part in the elaboration of this book: Maria Green Cowles, Youri Devuyst, Thomas Frellesen, Anthony Gardner, Roy Ginsberg, Alan Henrikson, John Peterson, Alberta Sbragia, René Schwok, Michael Smith.