Following the first conference on “Transatlantic Relations and the Challenges of Globalization” on 24–25 October 2003 in Schengen, the Luxembourg Group held a second conference on “Humanitarian Assistance in Armed Conflict” on 24–25 May 2004 in Geneva. Both conferences are part of a series of conferences on “International Cooperation and Conflict in the Post-September 11 World”. Within the framework of this project, a third conference will be organized on “Transatlantic Relations: How Do We Make the UN and Multilateralism Effective?” on 13–14 September 2004 in Washington D.C.