L'ouvrage rassemble des textes in?dits d'historiens, de politistes, de civilisationnistes, fran?ais, allemands, anglais, italiens, belges, autrichiens et am?ricains. Il insiste sur les projets des Etats-Unis pour l'Europe apr?s la Seconde Guerre, sur la r?action de certains pays europ?ens aux v?ux am?ricains, et sur la permanente rivalit? Etats-Unis-Europe, en particulier dans le domaine de l'?conomie et de la d?fense. La vie en commun Europe-Etats-Unis est une n?cessit?, jusqu'? ce que les Europ?ens d?finissent leur propre destin. Rivalit?, concurrence et tensions restent au rendez-vous du couple star du XX si?cle. This book presents original papers by French, German, Italian, Belgian, Austrian, and American historians, political scientists and specialists in international relations as well as by distinguished members of the Quai d'Orsay and the Minist?re de la D?fense. It discusses American plans for Europe after the Second World War and European reactions to them. It stresses the importance of a permanent Euro-American rivalry in partnership, especially in the fields of economy and defence; but it maintains that the Euro-American partnership is necessary until such time as the European Union is able to determine its own future. Rivalry, competition and confrontation remain the daily agenda of one of the most famous unions of twentieth-century international relations.