Christina V. Balis is a Ph.D. candidate in strategic studies at the Paul H. Nitze School of Advanced International Studies (SAIS), Johns Hopkins University, in Washington, D.C. Marta Dassu is editor of Aspenia and director of policy programs at the Aspen Institute Italia in Rome. She also lectures at the Rome university, La Sapienza Daniel S. Hamilton is the Richard von Weizsacker Professor and director of the Center for Transatlantic Relations at the Johns Hopkins University's Paul H. Nitze School of Advanced International Studies (SAIS). John L. Harper is resident professor of American foreign policy and European studies at the Bologna Center of the Johns Hopkins School of Advanced International Studies (SAIS), Italy. Christopher Hill is Montague Burton Professor of International Relations at the London School of Economics and Political Science. Christopher Layne is a visiting fellow in foreign policy studies at the Cato Institute and a consultant to the RAND Corporation. Roberto Menotti is research fellow in the policy program at Aspen Institute Italia, Rome Guillaume Parmentier is founder and director of the French Center on the United States (CFE) at the Paris-based Institut Francais des Relations Internationales (IFRI) and a professor of the University of Paris-II Simon Serfaty is the director of the CSIS Europe Program and the first recipient of the CSIS Zbigniew Brzezinski Chair in Global Security and Geostrategy, established in 2002. He is also Eminent Scholar and professor of U.S. foreign policy at Old Dominion University in Norfolk, Virginia. Michael Stuermer has been chief correspondent for Die Welt and Welt am Sonntag since 1998 and full professor of medieval and modern history at the Friedrich-Alexander-Universitat Erlangen-Nurnberg since 1973. Dmitri Trenin is senior associate at the Carnegie Endowment for International Peace (CEIP) and director of studies at the Carnegie Moscow Center.