Chairman, Joint Chiefs of Staff

Secretary, U.S. Department of Homeland Security

Supreme Allied Commander Europe and Commander, United States European Command

Secretary of the Army, United States Army

Commander, United States Southern Command

Commander, United States Space Command

Director, Defense Intelligence Agency

Secretary General, European External Action Service

Secretary General, Ministry of Foreign Affairs of Estonia

INTERPOL Secretary General, INTERPOL

Minister for Defence, Singapore

Foreign Policy and Security Advisor to the Federal Chancellor, Federal Chancellery

Chief Adviser on National Security and Foreign Policy to the President, Presidency of the Republic of Türkiye

White House Homeland Security Advisor, National Security Council

Director, United States Secret Service

Special Presidential Envoy for Hostage Affairs, U.S. Department of State

U.S. Ambassador to China, U.S. Embassy Beijing

Under Secretary of Commerce for Industry and Security, Bureau of Industry and Security (BIS), U.S. Department of Commerce

Under Secretary for Terrorism and Financial Intelligence, Department of the Treasury

Director, Defense Innovation Unit of the Office of the Secretary of Defense

Senator, United States Senate

Principal, Rice, Hadley, Gates & Manuel LLC; Former Secretary of Defense (2006-2011)

27th Secretary of Defense; Partner, Red Cell Partners Venture Capital

Senior Vice President/Global Public Policy, The Boeing Company

CEO, New America

Indiana Secretary of Education, Indiana Department of Education

Professor, Johns Hopkins University-SAIS; Visiting Fellow, The Brookings Institution

Commissioner, Commission on the National Defense Strategy

President, Global Affairs, Google LLC

Chief Government Affairs Officer, Intel

Corporate Vice President, Technology for Fundamental Rights, Microsoft

Vice President of Global Affairs, OpenAI

Director, U.S. Department of Defense, Worldwide Public Sector, Amazon Web Services

CEO and President, International Rescue Committee

SVP Communications, Policy & Advocacy, The Rockefeller Foundation

President & CEO, The ONE Campaign

Co-Chair and CEO, Nuclear Threat Initiative

Director, Belfer Center for Science and International Affairs, Harvard Kennedy School

Chair, The Commission on the National Defense Strategy; President Emerita, The Wilson Center; Aspen Trustee; Former Member of Congress

Chair, International and Defense Practices, BGR Group

Schlesinger Professor, Ripples of Hope Project Director, Miller Center, University of Virginia

Director, Foreign and Defense Policy Studies, American Enterprise Institute

Adjunct Senior Fellow, Council on Foreign Relations

Counselor, Center for Strategic and Budgetary Studies

Host, All Things Considered, NPR News

Chief National Security Correspondent, Fox News

National Security & Pentagon Correspondent, NBC News

White House and National Security Correspondent, The New York Times

Columnist and Associate Editor, The Washington Post

Author and Professor, Tulane University