On December 6, Ifri held its annual conference on the United States. Despite a very particular style, the Trump administration's foreign policy continues on many points the American withdrawal from World affairs which had started under Barack Obama. The main trends of thought of American foreign policy show this evolution, with the resurgence of non-interventionist and even nationalist ideas amongs DC think-tankers. Speakers included: -Gordon Adams, Professor Emeritus of International Relations, School of International Service, American University -Michael Lind, Visiting Professor, Lyndon B. Johnson School of Public Affairs, The University of Texas at Austin -Manuel Lafont-Rapnouil, Director of the Policy Planning Staff (Centre d’Analyse, de Prévision et de Stratégie), Ministry of Europe and Foreign Affairs of the French Republic Moderator : Laurence Nardon, Head of Ifri's North America Program