Our Members

The NSWG is formed of over 100 senior policy advisors, business leaders, professors and military officials. All our members have extensive applied experience of nuclear security and international relations.

Our Members

The NSWG is formed of over 100 senior policy advisors, business leaders, professors and military officials. All our members have extensive applied experience of nuclear security and international relations.
Find a member using the filters below
Name
Institution
Sector
Expertise
  • Surname

  • Institution

  • Sector

  • Expertise

Selected Categories

Dr. James M. Acton

Dr. James M. Acton

Co-Director, Nuclear Policy Program
Carnegie Endowment for International Peace
Dr. James M. Acton is Co-director of the Nuclear Policy Program at the Carnegie Endowment for International Peace. He is a prolific writer in the field of nuclear policy, and was a recipient of the competitive Carnegie Corporation of New York grant on New Technologies and the Nuclear Threat that funds his ongoing research into the escalation implications of advanced conventional weapons.
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Ambassador Susan Burk

Ambassador Susan Burk

Former Special Representative to the President of the United States for Nuclear Nonproliferation
Susan Burk is an independent consultant specializing on issues related to the international nuclear non-proliferation regime, in all aspects. She is a retired Senior Executive with 35 years’ experience, whose last position was as the Special Representative of the President (Obama) for Nuclear Non-proliferation, with the rank of Ambassador.
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Ambassador Lincoln Bloomfield Jr.

Ambassador Lincoln Bloomfield Jr.

Ambassador
Palmer Coates
Ambassador Lincoln Bloomfield Jr. is President of Palmer Coates LLC, and was Chairman of the non-partisan Stimson Center. During his 35 year career he has also held roles as U.S. Special Envoy for MANPADS Threat Reduction, U.S. Assistant Secretary of State for Political Military Affairs, and as Special Representative of the President and Secretary of State for Humanitarian Mine Action. He specializes in U.S. defense, intelligence, U.S. alliances, and U.S. defense strategy.
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Brigadier General (Ret.) Bob Barnes

Brigadier General (Ret.) Bob Barnes

Senior Policy Advisor
Center for Climate and Security
Brigadier General Bob Barnes is Senior Fellow at, and member of the Advisor Board of, the Center for Climate and Security, where he provides policy advice on addressing the security implications of climate change. He retired from the Army as a Brigadier General in 2001, after 32 years of service. He is a recognized expert on environmental security, interagency and public-private collaboration on climate change and other environmental matters with national security implications.
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Lieutenant General (Ret.) John Castellaw

Lieutenant General (Ret.) John Castellaw

President
Crockett Policy Institute
Lieutenant General John Castellaw (Ret.) is the president of the Crockett Policy Institute (CPI) a non-partisan policy and research organization chartered in Tennessee. He spent 36 years serving in the Marines, holding several operational commands. He is a recognized national security expert, with a particular focus on defense spending and strategy, and issues of food security.
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Simin Yazdgerdi Curtis

Simin Yazdgerdi Curtis

President, CEO, Founder
American Middle East Institute
Simin Yazdgerdi Curtis is President, CEO and founder of the American Middle East Institute (AMEI), a national, non-profit organization, which works to build greater business, educational and cultural ties between the U.S. and the countries of the Middle East. With nearly 25 years’ experience, she is active in many civic and business organizations and her expertise center on government policy and the Middle East.
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Dr. Anthony H. Cordesman

Dr. Anthony H. Cordesman

Arleigh A. Burke Chair in Strategy
Center for Strategic and International Studies
Dr. Anthony H. Cordesman holds the Arleigh A. Burke Chair in Strategy at CSIS, and previously served as Director of Intelligence Assessment in the Office of the Secretary of Defense. During a career that spans five decades he has completed a wide variety of studies on issues including energy, U.S. strategy and defense plans, the lessons of modern war, and NATO modernization.
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Elbridge Colby

Elbridge Colby

Principal and Co-Founder
The Marathon Initiative
Elbridge Colby is the Principal and Co-Founder of The Marathon Initiative, a non-profit research organization focused on developing the diplomatic, military, and economic strategies the United States will need to navigate protracted competition with great power rivals. He served as the Deputy Assistant Secretary of Defense for Strategy & Force Development from 2017 to 2018. He focuses on strategic deterrence, nuclear weapons, conventional forces, and intelligence.
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Dr. Shahram Chubin

Dr. Shahram Chubin

Retired
Carnegie Endowment for International Peace
Dr. Shahram Chubin is a former nonresident Senior Associate in the Carnegie Nuclear Policy Program, and was previously Director of Studies at the Geneva Centre for Security Policy. He has over 35 years’ experience in issues of defense and security, military and nuclear weapons, and now focuses his research on non-proliferation, terrorism, and Middle East security issues.
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Antonia Handler Chayes

Antonia Handler Chayes

Professor
Tufts University
Antonia Chayes is Professor of Practice in International Politics and Law at The Fletcher School. Previously she served as Vice Chair of Conflict Management Group (CMG), an international nonprofit dispute resolution organization. Her expertise include international treaties, international security, and arms control (especially civil military relations).
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Dr. Dan Caldwell

Dr. Dan Caldwell

Emeritus Distinguished Professor of Political Science
Pepperdine University
Dr. Dan Caldwell is an emeritus distinguished Professor of Political Science at Pepperdine University and a member of the International Studies Association and the Council on Foreign Relations, where he chairs the Academic Outreach Initiative. He previously served for three years on active duty as an Officer in the U.S. Naval Reserve. He has a particular interest in American foreign policy, arms control, international security, and Russian-American relations.
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Dr. Daniel Chiu

Dr. Daniel Chiu

Director of Joint Advanced Warfighting Division
Institute for Defense Analyses
Dr. Daniel Y. Chiu is the Director of IDA’s Joint Advanced Warfighting Division. Dr. Chiu leads a staff of more than 40 IDA researchers working to stimulate breakthrough improvements in joint military capabilities and concepts of operation with a focus on Joint Experimentation and Defense Innovation. Prior to joining IDA, he served as Director of Strategy at the Atlantic Council and Deputy Director of the Brent Scowcroft Center on International Security.
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Madelyn Creedon

Madelyn Creedon

Chair
Nuclear Security Working Group
Madelyn Creedon is a Research Professor of International Affairs and Chair of the Nuclear Security Working Group at The George Washington University and the founder and President of Green Marble Group, LLC, a defense consulting firm. Ms. Creedon recently chaired the Commission on the Strategic Posture of the United States and formerly served in senior roles at the National Nuclear Security Administration, the Department of Defense, and the Senate Armed Services Committee.
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Dr. Peter Dombrowski

Dr. Peter Dombrowski

Professor of Strategy
Naval War College
Dr. Peter Dombrowski is a Professor of Strategy in the Strategic Research Department at the Naval War College. Over the last 25 years he has also held positions as Director of the Naval War College Press, Editor of the Naval War College Review, and Co-editor of International Studies Quarterly. He specializes in naval strategy, science and security.
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Ryan Evans

Ryan Evans

CEO and Editor in Chief, War on the Rocks
Ryan Evans is the founder, CEO, and editor-in-chief of War on the Rocks and the publisher of the Texas National Security Review. Mr. Evans deployed to Afghanistan from 2010 to 2011 as a Social Scientist on a U.S. Army Human Terrain Team and has since written extensively on Afghanistan and counterinsurgency. He has worked as a research fellow at the Washington-based Center for National Policy and for the International Centre for the Study of Radicalisation and Political Violence in London.
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Michael Elliott

Michael Elliott

Managing Member
Michael S. Elliott, LLC
Michael Elliott is the Managing Member of Michael S. Elliott, LLC, where he provides advice to the Commander of United States Strategic Command through the USSTRATCOM Strategic Advisor Group. He is the former Deputy Director for Strategic Stability Plans and Policy Directorate, Joint Chiefs of Staff. In this role, he was responsible for the formulation of joint staff positions and recommendations regarding strategic deterrence and nuclear policy.
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Michael Eisenstadt

Michael Eisenstadt

Kahn Fellow; Director, Military & Security Studies Program
The Washington Institute for Near East Policy
Michael Eisenstadt is a Kahn Fellow, and Director of the Military and Security Studies Program at The Washington Institute for Near East Policy. He served for 26 years as an Officer in the U.S. Army Reserve before retiring in 2010, and now specializes in Persian Gulf and Arab-Israeli security affairs.
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Mark Fitzpatrick

Mark Fitzpatrick

Associate Fellow for Strategy, Technology, and Arms Control
International Institute for Strategic Studies
Mark Fitzpatrick is Associate Fellow for Strategy, Technology, and Arms Control at the International Institute for Strategic Studies (IISS). He was formerly the Executive Director of the Americas office of the IISS and Head of the Institute’s Non-Proliferation and Nuclear Policy Program. He previously worked for 26 years in the U.S. Department of State. His research focuses on regional proliferation challenges and preventing nuclear danger in the era of "nuclear renaissance."
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Dr. Shai Feldman

Dr. Shai Feldman

Director, Crown Center for Middle East Studies and Professor of Politics
Brandeis University
Dr. Shai Feldman is Professor of Politics and the Judith and Sidney Swartz Director of the Crown Center for Middle East Studies at Brandeis University, and a member of the Board of Directors of Harvard University’s Belfer Center for Science and International Affairs. During his 35 year career, he has also served as a member of the UN Secretary General’s Advisory Board on Disarmament Matters. His expertise are focused on Israel-Palestinian negotiations, nuclear proliferation, U.S. policy in the Middle East, and Israel foreign policy.
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Dr. Steve Fetter

Dr. Steve Fetter

Professor, School of Public Policy
University of Maryland
Dr. Steve Fetter is a Professor in the School of Public Policy at the University of Maryland. Over the last 30 years, he has spent time working at the White House, at the Joint Global Change Research Institute, and at several U.S. government agencies. His research and policy interests include nuclear arms control and non-proliferation, nuclear energy and releases of radiation, and climate change and low-carbon energy supply.
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Francesco “Frank” Femia

Francesco “Frank” Femia

Co-Founder & Research Director
Center for Climate and Security
Francesco Femia is Co-Founder and Research Director of the Council on Strategic Risks (CSR) and the Center for Climate and Security. He has previously served as Co-president of the Center for Climate and Security, and Co-chair of the Climate and Security Advisory Group. He is an expert on European foreign policy, climate change, security and defense issues.
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Seth Grae

Seth Grae

President & CEO
Lightbridge Corporation
Seth Grae is President and CEO of Lightbridge Corporation, which develops advanced nuclear fuel technology to improve the economics and safety of existing and new reactors. During his tenure, Lightbridge has evolved into a leader in developing advanced nuclear fuel technologies and in providing advisory services to developing and existing nuclear energy programs seeking to meet the highest international standards of safety, non-proliferation, and transparency.
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Mr. Dennis M. Gormley

Mr. Dennis M. Gormley

Senior Lecturer
University of Pittsburgh
Dennis M. Gormley is a Senior Fellow at the International Institute of Strategic Studies. His career spans back to the 1960s, when he was an officer in the U.S. Army. He has since worked in the U.S. intelligence community, and held various positions in academia. His work has focused on international security, arms control, and weapons proliferation issues.
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Dr. Charles L. Glaser

Dr. Charles L. Glaser

Senior Fellow, Security Studies Program
Massachusetts Institute of Technology
Dr. Charles L. Glaser is a is a Senior Fellow in the MIT Security Studies Program. He has previously taught at The George Washington University, the University of Chicago, and the University of Michigan, and served in the Pentagon on the Joint Staff. His research focuses on international relations theory and international security policy.
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John Allen Gay

John Allen Gay

Executive Director
John Quincy Adams Society
John Allen Gay is the Executive Director of the John Quincy Adams Society, an organization dedicated to promoting a restraint-based U.S. foreign policy. He is best known for his writing on politics and the military in Iran.
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Dr. Francis J. Gavin

Dr. Francis J. Gavin

Giovanni Agnelli Distinguished Professor and the Director of the Henry A. Kissinger Center for Global Affairs
Johns Hopkins University
Dr. Francis J. Gavin is the Giovanni Agnelli Distinguished Professor and the inaugural Director of the Henry A. Kissinger Center for Global Affairs at SAIS-Johns Hopkins University. Over the last 20 years he has also held positions at MIT and the University of Texas. He has particular interest in European, Iranian and American foreign policy, as well as NATO and U.S. grand strategy.
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Ambassador Laura S. H. Holgate

Ambassador Laura S. H. Holgate

U.S. Ambassador to the Vienna Office of the United Nations and the International Atomic Energy Agency
Ambassador Laura S.H. Holgate serves as U.S. Ambassador to the Vienna Office of the United Nations and the International Atomic Energy Agency. She previously held the position from July 2016...
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The Hon. Rebecca Hersman

The Hon. Rebecca Hersman

Director
Defense Threat Reduction Agency
The Honorable Rebecca Hersman is Director of the Defense Threat Reduction Agency, and has previously worked at the Project on Nuclear Issues at CSIS, DOD, Council on Foreign Relations, and House Armed Services Committee. She specializes in defense strategy and capabilities, defense and security, geopolitics and international security, and weapons of mass destruction proliferation.
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The Hon. Kathleen Hicks

The Hon. Kathleen Hicks

Deputy Secretary of Defense
U.S. Department of Defense
The Honorable Dr. Kathleen H. Hicks serves as the 35th Deputy Secretary of Defense. Previously, she held senior positions at the Center for Strategic and International Studies. From 2009 to 2013, she served as a senior civilian official in the Department of Defense. Her 25-year career has also included time served in the Obama administration in senior positions in defense policy and strategy, and she has become an expert in issues such as counterterrorism and homeland security, long-term futures, and weapons of mass destruction proliferation.
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Peter Huessy

Peter Huessy

President
Geostrategic Analysis
Peter Huessy is President of his own defense consulting firm, GeoStrategic Analysis. His 40 years of experience has also included serving at the National Defense University Foundation, the AFPC, the Mitchell Institute of Aerospace Studies, and the Air Force Association. He specializes in developing and implementing public policy campaigns to secure support for important national security objectives, including US nuclear modernization programs.
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Colonel (Ret.) Paul Hughes

Colonel (Ret.) Paul Hughes

Retired
U.S. Army
Colonel Paul Hughes previously served as the interim Vice President of the Center for Applied Conflict Transformation. He also served as a Special Advisor to the President of the United States Institute of Peace, as the Director of Overseas Safety and Security from 2014 to 2022, and as the Executive Director for the 2018 National Defense Strategy Commission. He retired from the military in 2005 after 30 years of service, and now specializes in topics including arms control, weapons of mass destruction, and missile defense.
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Lieutenant General (Ret.) Dirk Jameson

Lieutenant General (Ret.) Dirk Jameson

Retired
U.S. Air Force
Lieutenant General Jameson retired from the U.S. Air Force in 1996 after more than three decades of military service. His final assignment was as Deputy Commander-in-Chief U.S. Strategic Command. He has since served in executive positions with a number of aerospace companies and as Executive Director of the Texas State Infrastructure Fund.
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Dr. Catherine McArdle Kelleher

Dr. Catherine McArdle Kelleher

Professor Emeritus
University of Maryland
Dr. Catherine McArdle Kelleher is College Park Professor of Public Policy at the University of Maryland, where she teaches and advises in the areas of international security and American defense policy. She is concurrently Senior Fellow at the Watson Institute for International Studies at Brown University. Her earlier government service included working as Deputy Assistant Secretary of Defense for Russia, Ukraine and Eurasia, and the Secretary of Defense’s representative to NATO in Brussels. She has 50 years’ experience in nuclear arms control as well as German, Russian, and European security issues.
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Dr. Geoffrey Kemp

Dr. Geoffrey Kemp

Senior Director, Regional Security Programs
Center for the National Interest
Dr. Geoffrey Kemp is Director of Regional Security Programs at the Center for the National Interest. He was previously Director of the Middle East Arms Control Project at the Carnegie Endowment for International Peace, and also served in the White House during the first Reagan administration. He has studied and worked in international relations for 50 years, with a particular interest in U.S. policy in the greater Middle East.
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Lieutenant General (Ret.) Frank G. Klotz

Lieutenant General (Ret.) Frank G. Klotz

Adjunct Senior Fellow
RAND Corporation
Lieutenant General Frank G. Klotz is an Adjunct Senior Fellow at the RAND Corporation. General Klotz formerly served as the Department of Energy’s Under Secretary for Nuclear Security, Administrator for the National Nuclear Security Administration (NNSA), and Commander of Air Force Global Strike Command. He has more than 20 years' experience in both military positions and policy and management roles, with his time at the U.S. Embassy Moscow leading to a particular specialism in U.S.-Russian relations.
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Dr. Colin Kahl

Dr. Colin Kahl

Senior Fellow, Center for International Security and Cooperation
Stanford University
Dr. Colin H. Kahl is the inaugural Steven C. Házy Senior Fellow at the Center for International Security and Cooperation and a Professor, by courtesy, in the Department of Political Science at Stanford University. Dr. Kahl served as National Security Advisor to the Vice President from 2014 to 2017 and as Under Secretary of Defense for Policy from 2021 to 2023. His current research includes an assessment of American grand strategy in the Middle East in the post-9/11 era.
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Dr. Susan J. Koch

Dr. Susan J. Koch

Distinguished Research Fellow
National Defense University
Dr. Susan J. Koch is an independent consultant, specializing in policy issues regarding arms reduction and the proliferation of weapons of mass destruction. She previously spent 25 years working in government, holding a series of positions at the White House and the Department of State.
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General (Ret.) C. Robert “Bob” Kehler

General (Ret.) C. Robert “Bob” Kehler

Former Commander of STRATCOM
General Robert Kehler retired from the United States Air Force in 2013 after almost 39 years of distinguished service. He offers his expertise as a consultant, non-executive corporate Director of two international aerospace companies, and as a Trustee of the Mitre Corporation. He speaks widely on matters of national security, particularly governance, institutions and organizations, and military.
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Dr. David Kay

Dr. David Kay

Senior Fellow
Potomac Institute for Policy Studies
Dr. David Kay is a Senior Fellow at the Potomac Institute for Policy Studies and a consultant with a concentration on counter terrorism and weapons proliferation. He was previously a member of the Department of State’s International Security Advisory Board, and has served on a number of official U.S. government delegations and government and private advisory commissions.
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Ms. Hannah Lloyd-Barker

Ms. Hannah Lloyd-Barker

Program Manager, NSWG
Hannah Lloyd-Barker works as a program manager for the Nuclear Security Working Group. She has worked for the Department of Energy/National Nuclear Security Administration, the Department of Defense, the Senate Armed Services Committee, and the House of Representatives. She is a graduate of Georgetown University with a Master’s Degree in Security Studies, specializing in International Nuclear Security.
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Dr. Edward Levine

Dr. Edward Levine

Senate Foreign Relations Committee (Ret.)
Dr. Edward Levine is a retired senior professional staff member of the Senate Foreign Relations Committee (SFRC), with over 40 years’ experience. Before that, he was a professional staff member of the Senate Select Committee on Intelligence (SSCI) and also taught Political Science at both the University of Michigan and Rice University. He is a leading specialist on arms control, non-proliferation, and U.S arms sales to other countries.
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Dr. Alexander T. J. Lennon

Dr. Alexander T. J. Lennon

Editor-in-Chief
Washington Quarterly
Dr. Alexander T. J. Lennon is the Editor-in-Chief of The Washington Quarterly, hosted at the Elliott School of International Affairs at George Washington University. For the last 20 years he has researched and written on topics including the grand strategy, foreign and security policies, and nuclear security strategy.
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Dr. Keir Lieber

Dr. Keir Lieber

Professor
Georgetown University
Dr. Keir A. Lieber is a Professor at the Edmund A. Walsh School of Foreign Service at Georgetown University and a Nonresident Senior Fellow at the Atlantic Council’s Scowcroft Center for Strategy and Security.. He has been awarded major fellowships from the Brookings Institution, Council on Foreign Relations, and Earhart Foundation, among others. His research and teaching interests include nuclear weapons, strategy, and deterrence, and the causes of war.
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Dr. Robert Litwak

Dr. Robert Litwak

Senior Vice President and Director of International Security Studies
Woodrow Wilson International Center for Scholars
Dr. Robert Litwak is Senior Vice President and Director of International Security Studies at the Woodrow Wilson International Center for Scholars. He is also a consultant to the Los Alamos National Laboratory. Over the last 20 years he has also held government positions, and written numerous books. His expertise center on security and defense, nuclear weapons and terrorism.
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Dr. Austin Long

Dr. Austin Long

Deputy Director for Strategic Stability
The Joint Staff
Dr. Austin Long is the Deputy Director for Strategic Stability at the Joint Chiefs of Staff in the Directorate for Strategy, Plans, and Policy (J5). He was previously a Senior Political Scientist at the RAND Corporation and an Associate Professor at Columbia University’s School of International and Public Affairs. His research interests include low-intensity conflict, military innovation and the political economy of national security.
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Brett B. Lambert

Brett B. Lambert

Managing Director
The Densmore Group, LLC
Brett B. Lambert is the Managing Director of the Densmore Group, LLC, a national security and intelligence consultancy. Over the last 30 years he has also held positions at Northop Grumman, Renaissance Strategic Advisors, at the National Defense Industrial Association, and in government, as well as founding national security consultancy DFI International. He is an expert in technology assessments, strategic planning, and market analyses for defense, intelligence, and space companies
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Dr. Patricia M. Lewis

Dr. Patricia M. Lewis

Research Director for International Security
Chatham House, The Royal Institute of International Affairs
Dr. Patricia Lewis is the Research Director of International Security at Chatham House. She has previously worked at the Monterey Institute of International Studies, UNIDIR and VERTIC. With a Ph.D. in Nuclear Physics and over 30 years’ experience in the field, she has been recognized for her work to resolve issues involving the interface of physics and society. Much of her research focuses on science and technology policies, weapons of mass destruction and arms control.
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Colonel (Ret.) Mark Mykleby

Colonel (Ret.) Mark Mykleby

Co-Director of the Strategic Innovation Lab
Case Western Reserve University
Mark Mykleby is the Co-director of the Strategic Innovation Lab at Case Western Reserve University. He previously served in the Marine Corps for over 20 years, where he was deployed to Europe, the Pacific and Southwest Asia. He specializes in grand strategy and sustainability.
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Kenneth Myers

Kenneth Myers

Board of Directors
Civilian Research and Development Foundation (CRDF) Global
Kenneth Myers is on the Board of Directors of Civilian Research and Development Foundation (CRDF) Global. Myers was the Director of the Defense Threat Reduction Agency and U.S. Strategic Command Center for Combating Weapons of Mass Destruction from 2009 - 2016. Previously, Myers served for six years as a Senior Professional Staff Member on the Senate Committee on Foreign Relations and eight years on the personal staff of Senator Richard Lugar.
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The Hon. Robert J. Murray

The Hon. Robert J. Murray

Professor of Practice
Georgetown University
Dr. Robert J. Murray is a Professor of the Practice at Georgetown University and President Emeritus of CNA Corporation. His 50 year career also includes time spent teaching at the Naval War College in Newport, RI and Harvard University, and serving in government. He specializes in national security, the Middle East and military strategy.
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Dr. Jim Miller

Dr. Jim Miller

Assistant Director for Policy and Analysis, The Applied Physics Laboratory
Johns Hopkins University
Dr. Jim Miller is President of Adaptive Strategies, LLC. He also serves on the Board of Directors for the Atlantic Council, and on the Board of Advisors for Endgame, Inc. Over the last three decades he has also served as the principal civilian advisor to the Secretary of Defense on strategy, policy, and operations, working to strengthen relations with allies and partners in Europe, the Middle East, and Asia.
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Dr. Thomas G. Mahnken

Dr. Thomas G. Mahnken

President
Center for Strategic and Budgetary Assessments
Dr. Thomas G. Mahnken is President and Chief Executive Officer of the Center for Strategic and Budgetary Assessments. He has worked in defense planning and international strategy for over 20 years, and has served as an Officer in the U.S. Navy Reserve.
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The Hon. Vipin Narang

The Hon. Vipin Narang

Acting Assistant Secretary of Defense for Space Policy
U.S. Department of Defense
The Honorable Dr. Vipin Narang is the Acting Assistant Secretary of Defense for Space Policy. From 2022 to 2024, Dr. Narang served as Principal Deputy Assistant Secretary of Defense for Space Policy. He has previously held fellowships at both Harvard and Stanford Universities and is a former Associate Professor of Political Science at MIT and a member of MIT’s Security Studies Program. His research interests include nuclear proliferation and strategy, South Asian security, and general security studies.
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Dr. Alan Platt

Dr. Alan Platt

Foreign Policy Institute Fellow
Johns Hopkins University
Dr. Alan Platt is a retired Senior Fellow at the Foreign Policy Institute of the Johns Hopkins School of Advanced International Studies, and was previously a Principal in the Washington office of Gibson Dunn & Crutcher. His career spans almost 50 years, and has focused on foreign economic and international security matters, particularly the Executive and Legislative processes.
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Dr. Barry R. Posen

Dr. Barry R. Posen

Ford International Professor of Political Science
Massachusetts Institute of Technology
Dr. Barry R. Posen is Ford International Professor of Political Science at MIT, Director of the MIT Security Studies Program, and serves on the Executive Committee of Seminar XXI. He has held numerous fellowship positions during his 40 year career, and specializes in security studies, international relations, international security, military strategy, restraint, nuclear studies and military doctrine.
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Dr. Christopher Preble

Dr. Christopher Preble

Senior Fellow and Director, Reimagining U.S. Grand Strategy
Stimson Center
Dr. Christopher Preble is the Senior Fellow and Director of the Reimagining US Grand Strategy program at the Stimson Center and formerly was the Vice President for Defense and Foreign Policy Studies at the Cato Institute. His 30-year career also includes time spent as a Commissioned Officer in the U.S. Navy.
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Ambassador Steven Pifer

Ambassador Steven Pifer

Nonresident Senior Fellow, Arms Control and Non-Proliferation Initiative
Brookings Institution
Ambassador Steven Pifer is a nonresident senior fellow of the Brookings Arms Control and Non-Proliferation Initiative and a Senior Fellow with the Center for 21st Century Security and Intelligence and the Center on the United States and Europe in the Foreign Policy program at Brookings. He is a retired Foreign Service Officer with more than 25 years with the State Department, and specializes in arms control, Russia and Ukraine.
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Dr. Or (Ori) Rabinowitz

Dr. Or (Ori) Rabinowitz

Hebrew University of Jerusalem
Dr. Or (Ori) Rabinowitz is an Assistant Professor at the International Relations department of the Hebrew University of Jerusalem. Her ten year academic career has focused on nuclear proliferation, nuclear history, and U.S.-Israel relations.
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Joan Rohlfing

Joan Rohlfing

President & COO
Nuclear Threat Initiative
Joan Rohlfing is the President and Chief Operating Officer of the Nuclear Threat Initiative, which she has been involved with since its launch. Before joining NTI, she held senior positions with the U.S. Department of Energy. Her career spans thirty years, and she has been awarded for her work in the field of nuclear policy.
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Frank A. Rose

Frank A. Rose

Senior Fellow, Security and Strategy
Brookings Institution
Frank A. Rose is a Senior Fellow for security and strategy in the Foreign Policy program at the Brookings Institution. He previously served as Principal Director and Chief of Government Relations at the Aerospace Corporation, and has held various national security staff positions in the U.S. House of Representatives during his 20 year career. He specializes in nuclear strategy and deterrence, arms control, strategic stability, missile defense, outer space, and emerging security challenges.
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Dr. Scott D. Sagan

Dr. Scott D. Sagan

Co-Director, Center for International Security and Cooperation
Stanford University
Dr. Scott D. Sagan is the Caroline S.G. Munro Professor of Political Science at Stanford University, as well as holding multiple fellowships. He was previously a lecturer in the Department of Government at Harvard University. His 30 year career also includes time spent working at the Pentagon. He is an expert in nuclear strategy, ethics and war, public opinion about the use of force, nuclear non-proliferation, and the safety of hazardous technology.
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Dr. Elizabeth N. Saunders

Dr. Elizabeth N. Saunders

Professor of Political Science
Columbia University
Dr. Elizabeth N. Saunders is a Professor of Political Science at Columbia University and a non-resident Senior Fellow at the Brookings Institution. Over the last decade she has held numerous fellowships, with her research and teaching interests focusing on international security and U.S. foreign policy, including the politics of using force.
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Dr. Jacquelyn G. Schneider

Dr. Jacquelyn G. Schneider

Hoover Fellow
Hoover Institution
Dr. Jacquelyn Schneider is a Hoover Fellow at the Hoover Institution, the Director of the Hoover Wargaming and Crisis Simulation Initiative, and an affiliate with Stanford's Center for International Security and Cooperation. Her career also includes six years as an Air Force Officer in South Korea and Japan. Her research now focuses on the intersection of technology, national security, and political psychology with a special interest in cyber, unmanned technologies, and Northeast Asia.
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Dr. Douglas B. Shaw

Dr. Douglas B. Shaw

Research Professor of International Affairs
The George Washington University
Dr. Douglas B. Shaw is Assistant Professor of International Affairs at the Elliot School of International Affairs at George Washington University, where he has previously held a number of positions. Earlier in his 25 year career, Dr. Shaw joined the White House Office of Presidential Personnel and held appointments in both Clinton administrations. His expertise center on nuclear non-proliferation, arms control, and disarmament.
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The Hon. Walter B. Slocombe

The Hon. Walter B. Slocombe

Senior Counsel
Caplin & Drysdale
Walter B. Slocombe is the Secretary, Director, and member of the Executive Committee of the Atlantic Council and a Senior Counsel at the Washington, D.C., law firm Caplin & Drysdale. He has over 50 years’ experience, including many years with the Defense Department, and has developed particular expertise in legal and ethical considerations in information operations.
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Dr. Caitlin Talmadge

Dr. Caitlin Talmadge

Associate Professor of Political Science
The Massachusetts Institute of Technology
Dr. Caitlin Talmadge is an Associate Professor of Political Science at the Massachusetts Institute of Technology and a faculty member in the Security Studies Program at MIT. Her research and teaching focus on U.S. defense policy, military effectiveness, civil-military relations, nuclear strategy, nuclear deterrence and escalation, and Persian Gulf security issues.
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Dr. Jane Vaynman

Dr. Jane Vaynman

Assistant Professor of Strategic Studies
Johns Hopkins University
Dr. Jane Vaynman is an Assistant Professor of Strategic Studies at the School of Advanced International Studies (SAIS) at Johns Hopkins University. She previously held positions at Temple University and George Washington University. She is also the Co-founder of the Nuclear Studies Research Initiative. She is known for her expertise in security cooperation between adversarial states and the design of arms control agreements.
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Major General (Ret.) Jasper Welch

Major General (Ret.) Jasper Welch

Retired
U.S. Air Force
Major General Jasper Welch served for 31 years in the United States Air Force before retiring in 1983 in the rank of Major General. In the decades the followed, he has worked as a consultant for government and industry, including serving as an advisor to the White House Office of Science and Technology Policy, the Defense Science Board, and the Los Alamos National Laboratory.
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Ms. Caitlin Werrell

Ms. Caitlin Werrell

Co-Founder & President
Center for Climate and Security
Caitlin Werrell is CEO of the Council on Strategic Risks (CSR), and was previously Co-President of the Center for Climate and Security, and Co-Chair of the Climate and Security Advisory Group. She has a particular interest in the security implications of climate change, water stress and natural resource mismanagement in Syria and North Africa, and on the potential for new technologies for addressing climate risks.
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Robin Wright

Robin Wright

Contributor
New Yorker
Robin Wright is a foreign affairs journalist and joint fellow at the US Institute of Peace and the Wilson Center, who has reported from more than 140 countries over the last 30 years. She has covered a dozen wars and several revolutions. She has received numerous awards for her work, which focuses on security and defense and terrorism, particularly in the Middle East and North Africa.
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Dr. Heather Williams

Dr. Heather Williams

Director, Project on Nuclear Issues
Center for Strategic and International Studies
Dr. Heather Williams is the director of the Project on Nuclear Issues and a senior fellow in the International Security Program at the Center for Strategic and International Studies (CSIS). She is also an associate fellow with the Project on Managing the Atom in the Belfer Center for Science and International Affairs at the John F. Kennedy School at Harvard University. Until 2022, she was a senior lecturer in defense studies at King’s College London and taught on arms control, deterrence, and disarmament.
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Lt. Gen. Jack Weinstein (Ret.)

Lt. Gen. Jack Weinstein (Ret.)

Professor of the Practice of International Security
Boston University
Lieutenant General Jack Weinstein (USAF, Ret.) is a Professor of the Practice of International Security at Boston University. Prior to his retirement from the military, General Weinstein was the Deputy Chief of Staff for Strategic Deterrence and Nuclear Integration, Headquarters United States Air Force. In this position, he was responsible to the Secretary and Chief of Staff on all aspects of nuclear deterrence operations.
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Dr. Ruth Wedgwood

Dr. Ruth Wedgwood

Burling Professor of International Law and Diplomacy
Johns Hopkins University
Dr. Ruth Wedgwood is the Edward B. Burling Professor of International Law and Diplomacy and the Director of the International Law Program at the Johns Hopkins School of Advanced International Studies, in Washington, D.C. She has over 30 years’ experience, including serving as a two-term U.S. member of the United Nations Committee on Human Rights. She is an expert in United Nations peacekeeping and politics, as well as American legal history.
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Dr. Amy Zegart

Dr. Amy Zegart

Co-Director and Senior Fellow, CISAC
Stanford University
Amy Zegart is a Senior Fellow at the Hoover Institution and an affiliated faculty member at the Center for International Security and Cooperation. She previously served on the Clinton administration’s National Security Council staff and as a foreign policy advisor to the Bush-Cheney 2000 presidential campaign. Her wide ranging experience over more than 20 years has led to her recognition by the National Journal as one of the ten most influential experts in intelligence reform.
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Dr. Dov S. Zakheim

Dr. Dov S. Zakheim

Vice-Chairman, Board of Trustees
Foreign Policy Research Institute
Dr. Dov S. Zakheim is a Senior Fellow at the CNA Corporation and a Senior Advisor at the Center for Strategic and International Studies. Previously, he was Senior Vice President of Booz Allen Hamilton, where he led the firm’s support of the U.S. Combatant Commanders worldwide. With experience spanning four decades, Dr. Zakheim’s expertise center on strategic planning and defense policy.
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