Samuel Zipp, Professor of American and Urban Studies, Brown University

John Gans, Director of Communications and Research, Perry World House, University of Pennsylvania

Stephen M. Walt, Robert and Renee Belfer Professor of International Affairs, Harvard University

John J. Mearsheimer, R. Wendell Harrison Distinguished Service Professor of Political Science, University of Chicago

Jake Sullivan, Former Director of Policy Planning, US Department of State; Senior Fellow, Geoeconomics and Strategy Program, Carnegie Endowment

Nada Bakos, Senior Fellow, Program on National Security, Foreign Policy Research Institute; Former CIA Analyst; Joby Warrick, Journalist, Washington Post

Jessica Mathews, Distinguished Fellow, Carnegie Endowment for International Peace; Michael Singh, Lane-Swig Senior Fellow and Managing Director, The Washington Institute for Near East Policy

Ivo H. Daalder, President, Chicago Council on Global Affairs; Michael Desch, Director, Notre Dame International Security Center, University of Notre Dame; Dina Smeltz, Senior Fellow, Public Opinion and Foreign Policy

Ivo H. Daalder, President, Chicago Council on Global Affairs; Mike Gallagher , Member, US House of Representatives (R-WI); Jane Harman, Director, President, and CEO, Wilson Center; Dina Smeltz, Senior Fellow, Public Opinion and Foreign Policy

Stephen Kinzer, Author and Journalist; Senior Fellow, Watson Institute for International and Public Affairs

Richard Haass, President, Council on Foreign Relations

Richard N. Haass, President, Council on Foreign Relations

Derek Chollet, Counselor and Senior Advisor, The German Marshall Fund of the United States

James Dobbins, Distinguished Chair in Diplomacy and Security, RAND Corporation; Former US Ambassador to the European Union

Fareed Zakaria, Journalist and Author

Mark Landler, White House Correspondent, The New York Times

James Traub, Author and Columnist, Foreign Policy

Kenton Clymer, Distinguished Research Professor of History; Faculty Associate, Center for Southeast Asian Studies, Northern Illinois University

Peter Bergen, Vice President, New America; National Security Analyst, CNN

Brian T. Edwards, Crown Professor and Director, Program in Middle East and North African Studies, Northwestern University

Michael V. Hayden, Former Director, Central Intelligence Agency; Former Director, National Security Agency

Admiral Cecil D. Haney, Commander, US Strategic Command, Department of Defense

Gil Troy, Professor of History, McGill University

Nicholas Kralev, Author and Former Correspondent, Financial Times and Washington Times

The Honorable Robert M. Gates, Former US Secretary of Defense

Jon Meacham, Pulitzer Prize Winning Author

David Axelrod, Director, Institute of Politics; former Senior Advisor to the President, White House; Alex Castellanos, Chairman and Founding Partner, Purple Strategies; Ivo H. Daalder, President, Chicago Council on Global Affairs; Dina Smeltz, Senior Fellow, Public Opinion and Foreign Policy

Niall Ferguson, Laurence A. Tisch Professor of History, Harvard University

Michael Crowley, Senior Foreign Correspondent, POLITICO; Ivo H. Daalder, President, Chicago Council on Global Affairs; Susan B. Glasser, Editor, POLITICO; Dina Smeltz, Senior Fellow, Public Opinion and Foreign Policy

Johan Van Overtveldt, Minister of Finance, Belgium; Author