Susan Hennessey

Stacie Pettyjohn is a Senior Fellow and Director of the Defense Program at the Center for a New American Security (CNAS). Her areas of expertise include defense strategy, posture, force planning, the defense budget, and wargaming. Her current projects focus on munitions stockpiles, the effect of drones on warfare, and deterring the use of nuclear weapons in a multipolar world. Prior to joining CNAS, Pettyjohn spent over ten years at the RAND Corporation where she served as the Director of the Strategy and Doctrine Program in Project Air Force and the co-director of the Center for Gaming. In2020, she was a volunteer on the Biden administration’s defense transition team.

She has designed and led strategic and operational games that have assessed new operational concepts, tested the impacts of new technology, examined nuclear escalation and warfighting, and explored unclear phenomena, such as gray zone tactics and information warfare. Previously, she was a research fellow at the Brookings Institution, a peace scholar at the United States Institute of Peace, and a TAPIR fellow at the RAND Corporation.

Asha Castleberry is a distinguished national security & foreign policy expert, a public speaker, television media commentator, a United States Army Veteran, and a former U.S. Congressional Candidate. She is an author of a memoir titled, “ Why National Security Matters.” Castleberry has over a decade of experience working as a Middle East Policy Expert in the public and private sectors. For the Biden-Harris Administration, she served as a Senior Official (Senior Executive Service) in the Bureau of Near Eastern Affairs (Middle East Policy) in the U.S.State Department. From 2012-2015, Castleberry served in Kuwait, Iraq, and Jordan. She previously served as the Kuwait Desk Officer in the U.S. Army Central. She also served as a Senior Key Leader Engagement Officer for Combined Joint Task Force-Operation Inherent Resolve. Before her deployment, Asha worked in the U.S. Mission to the United Nations, where she worked on the United Nations Peacekeeping Mission in Africa.

Castleberry is a sought-after expert globally and has worked with many U.S. Ambassadors. This year, Asha served on a panel with high-level Iraqi officials (with Senior officials from members of Parliament and military officers) to discuss combating ISIS and the role of China at the Erbil Security Forum in Iraq.

Laura A. Dickinson is the Oswald Symister Colclough Research Professor of Law and Professor of Law at The George Washington University Law School. Her work focuses on national security, human rights, the law of armed conflict, and foreign affairs privatization. She has authored numerous articles and book chapters, including scholarship that has appeared in the American Journal of International Law, the Yale Journal of International Law, the NYU Journal of International Law and Politics, the William & Mary Law Review, the Emory Law Journal, and the Southern California Law Review. She also contributes regularly to the national security blog, Just Security. Professor Dickinson’s prizewinning book, Outsourcing War and Peace, published by Yale University Press, examines the increasing outsourcing of military and security functions, considers the impact of this trend on core public values, and outlines mechanisms for protecting these values in an era of privatization.

In addition to her scholarly activities, Professor Dickinson has a distinguished record of government service.

Kimberly Lehn is the Senior Director at the Pacific Forum, in charge of the Honolulu Defense Forum (HDF). HDF seeks to facilitate dialogue and solutions between a wide range of actors from the private and public sectors to bolster deterrence in the Indo-Pacific in the face of an increasingly contested regional security environment.

She is a national security professional with over 20 years of experience in the U.S. federal government and in the private sector. She is the Founder of Diamond Pacific Strategies LLC in Honolulu, and a Senior Advisor at Beacon Global Strategies, a strategic advisory firm in Washington, D.C. advising leading companies on national security issues. She previously served in management and analytic roles at the Central Intelligence Agency as well as on assignments to the National Security Council’s Directorate of East Asia, the Department of State’s Intelligence and Research Bureau, and on the U.S. House of Representatives Armed Services Committee as a professional staff member with a focus on the Indo-Pacific, strategic competition with China and Russia, and the important role alliances and partnerships play to build collective security.

Allison Peters previously served as the Deputy Assistant Secretary of State in the Bureau of Democracy, Human Rights, and Labor at the U.S. Department of State where she oversaw the Bureau’s Office of Multilateral and Global Affairs, including its work on technology and human rights, Office of East Asian and Pacific Affairs, and Office of Policy Planning and Public Diplomacy. Previously, Ms. Peters served as the Senior Advisor to the Under Secretary for Civilian Security, Democracy, and Human Rights and the Senior Advisor to the Assistant Secretary for International Narcotics and Law Enforcement Affairs where she worked to advance rights-respecting approaches to technology and cyber policy and counter threats.

Prior to her time in government, Peters served as the Deputy Director of the National Security Program at the think tank Third Way where she regularly advised policymakers on a broad spectrum of foreign policy and national security issues. In this capacity, she helped to lead the Program’s Cyber Enforcement Initiative where her writing, research, and policy development focused on strengthening global cooperation and capacity to identify and bring to justice malicious cyber actors.

Caroline Tess is Executive Director of National Security Action and former Executive Director of the Leadership Council for Women in National Security.

Caroline served as Special Assistant to the President at the National Security Council during the Obama Administration. She also served at the State Department focusing on North America and U.S. relations with the United Nations. Caroline worked on Capitol Hill for several years, serving on the Senate Intelligence Committee and in the offices of Senators Harry Reid and Bill Nelson.

Caitlin Hayden is the London-based Group Communications Director for BAE Systems, one of the largest aerospace, defense, and security firms in the world, employing around 110,000 people with customers in more than 40 countries. In this role, Hayden leads global communications and serves as a member of the company’s executive committee.

Prior to this, she served as the Senior Vice President of Communications at BAE Systems, Inc., leading all external and internal communications for the U.S. business.

Before joining BAE Systems, Hayden had accumulated nearly two decades of communications and leadership experience. This includes serving as vice president of Communications for the Aerospace Industries Association (AIA), leading the organization’s work to tell the aerospace and defense industry’s story in the U.S. and around the world. Previously, Hayden was executive vice president and Media Group director in Edelman’s Washington, D.C. office, where she worked with a range of clients to develop communications strategies to meet their business objectives, including protecting and promoting their brands and navigating regulatory, policy, and crisis issues.

Bonny Lin is a senior fellow for Asian security and director of the China Power Project at the Center for Strategic and International Studies (CSIS). Previously, she was the acting associate director of the Strategy and Doctrine Program of RAND Project AIR FORCE and a political scientist at the RAND Corporation, where she analyzed different aspects of U.S. competition with China, including U.S.-China competition for influence in the Indo-Pacific and China’s use of gray zone tactics against U.S. allies and partners.

Her research advised senior leaders in the Department of Defense, including military leaders at U.S. Pacific Air Forces and U.S. Army Pacific. Dr. Lin also served in the Office of the Secretary of Defense from 2015 to 2018, where she was director for Taiwan, country director for China, and senior adviser for China. Dr. Lin holds a PhD in political science from Yale University, a master’s degree in Asian studies with a focus on China from the University of Michigan, and a bachelor’s degree in government from Harvard College.

Dr. Rebecca Bill Chavez is president and CEO of the Inter-American Dialogue. She is formerly a senior fellow in the Dialogue’s Rule of Law Program. She is a member of the Truman Center for National Policy Board of Directors, the Leadership Council for Women in National Security (LCWINS) Steering Committee, the Princeton University Institute for Regional and International Studies Advisory Board, and the Foreign Policy for America Advisory Board.

Dr. Chavez served as Deputy Assistant Secretary of Defense for Western Hemisphere Affairs from 2013 until 2016 where she prioritized Women, Peace, and Security initiatives, combatting the militarization of law enforcement, and expanding defense institution building programs. Her areas of focus included shaping Defense Department contributions to President Obama’s Central America Strategy, moving the U.S.- Mexico relationship beyond the narrow counternarcotics focus, supporting the Colombian peace process, resetting defense relations with Argentina and Brazil, and establishing a productive dialogue with Cuba on humanitarian assistance and disaster response.

With a career spanning government, the non-profit sector, and law, Ms. Foster has deep expertise in the economic and political empowerment of women, and how to effectively integrate a gender-focused approach into foreign policy.

She is a co-founder of Smash Strategies, which provides strategic advice to corporations, institutions, and philanthropists to ensure that their investments in women and girls are effective and transformational. In 2021 through early 2023, Foster returned to the U.S. Department of State focusing on Afghan relocation, with a mandate to prioritize the needs of women and girls. She had previously served at the U.S. Department of State from 2012-2017 as a Senior Advisor/Counselor in the Secretary’s Office of Global Women’s Issues and at the US Embassy in Kabul, Afghanistan where she focused on women and civil society. Foster has also worked in private law practice, as a Chief of Staff to United States Senators Barbara Mikulski (D-MD) and Chris Dodd (D-CT), and in senior management positions in the non-profit sector. She is a lawyer by training.

Her first book, Take Action: Fighting for Women & Girls was published in October 2021. Her second book, co-authored with Susan Markham, Feminist Foreign Policy in Theory and Practice, was published in September 2023.

Dr. Jung H. Pak was Deputy Assistant Secretary in the Bureau of East Asian and Pacific Affairs at the U.S. Department of State. During her tenure at State, she was responsible for overseeing relations with Australia, New Zealand, and the Pacific Islands (2023-2024); deepening and expanding U.S. relationship with the Association of Southeast Asian Nations and related fora (2021-2023); and leading on Global China issues (2021-2022), developing new initiatives and strengthening collaboration with key foreign interlocutors. She concurrently served as U.S. Deputy Special Representative for North Korea from 2021-2023 and as the top U.S. official on North Korea policy from 2023-2024.

Prior to arriving at State, Dr. Pak was a senior fellow at the Brookings Institution, where she focused on Korean Peninsula issues, East Asia regional dynamics, and transnational threats related to proliferation, cybersecurity, and climate change. While at Brookings, she authored Becoming Kim Jong Un, which has been translated into multiple languages and draws from her deep knowledge and experience as an intelligence officer.

Christine Abizaid led the United States Government’s counterterrorism enterprise while serving as the Director of the National Counterterrorism Center (NCTC) from June 2021 to July 2024. She was the eighth Senate confirmed Director and the first woman to lead NCTC, the primary U.S. intelligence organization that integrates, analyzes, and shares terrorism information.

Before joining NCTC, Abizaid was as an executive at Dell Technologies in its Global Operations organization, where she led and advised on geopolitical and strategic risk analysis; supply chain security; sustainability and transparency initiatives; compliance; and global inventory management. While in the private sector, Abizaid was aboard member for the Responsible Business Alliance; a board member at the Middle East Policy Council; and an inaugural Steering Committee Member for the Leadership Council for Women in National Security (LCWINS).

Alexis Lasselle Ross is the President of Apex Defense Strategies, LLC, a strategic advisory firm that guides companies as they navigate the defense market. Ross founded Apex after more than two decades as an executive in the public and private sectors. Her consultancy draws upon this experience to offer companies a unique blend of strategic planning and executive advising on the  epartment of Defense’s acquisition system, the U.S. defense industrial base, and the planning and execution of large-scale change.

Most recently, Ross performed strategic planning at General Dynamics, advising corporate leadership on managing critical issues and navigating government business. Prior to entering the private sector, Ross served in a variety of senior positions in both the  executive and legislative branches of the U.S. government. She served as the deputy chief of staff to the Secretary of Defense,  advising the secretary and ensuring execution of Department of Defense policy, programs, and organizational restructuring.  During her tenure, she performed the duties of the undersecretary of defense for personnel and readiness, leading the  department’s healthcare and human resources systems during the early response to the COVID-19 pandemic. Previously, Ross served as the deputy assistant secretary of the army for strategy and acquisition reform, where she designed and implemented improvements to the Army acquisition system, including new policies on intellectual property and advanced manufacturing.

Ambassador James O’Brien most recently served as Assistant Secretary of State for European and Eurasian Affairs after previously serving as Head of the Office of Sanctions Policy prior to this role.

Mr. O’Brien was Vice Chair of Albright Stonebridge Group (ASG) and led the firm’s Europe practice. A founder of the firm, he has worked extensively on issues affecting consumer goods, health, entertainment, environment, media (including free speech), information technology, telecommunications, and finance sectors. Mr. O’Brien is also a member of the management and investment committees of Albright Capital Management LLC, an affiliated investment advisory firm focused on emerging markets.

Mr. O’Brien has served two U.S. administrations as special presidential envoy, securing the release of Americans held hostage abroad and overseeing U.S. policy planning towards the Balkans. He has been senior advisor to the U.S. Secretary of State and served as the principal deputy director of policy planning at the State Department. He worked to end armed conflicts in Europe, helped develop non-proliferation initiatives after the Cold War, negotiated environmental agreements, and supported initiatives to investigate and prosecute persons responsible for war crimes.

Heather Samuelson is an attorney and strategic advisor with nearly two decades of experience in government, politics and the non-profit sector. She most recently served as Special Assistant to the President and Senior Confirmations Counsel in the White House Office of Legislative Affairs, guiding hundreds of Biden-Harris Administration nominees through the Senate confirmation process. Heather also served in the Obama-Biden Administration, first as White House Liaison at the U.S. Department of State, and then as Assistant Counsel in the White House Counsel’s Office. In these roles, she directed recruitment and vetting for national security positions and advised officials on federal ethics compliance.

Prior to rejoining government, Heather was the first General Counsel for the National Domestic Workers Alliance (NDWA) overseeing all legal matters for NDWA and its sister organization Care in Action. Heather also served as a longtime attorney and advisor to Secretary Hillary Rodham Clinton, including representing the Secretary before the U.S. House Select Committee on Benghazi, and serving as Chief Counsel for the 2016 Clinton-Kaine Pre-Election Transition team.

Ambassador Nina Hachigian (ret) was the first U.S. Special Representative for City and State Diplomacy at the U.S. Department of State from 2022 to 2025 in the Biden Administration.  Before that, Amb, Hachigian served as the first Deputy Mayor for International Affairs for the City of Los Angeles for five years. From 2014 to 2017, Ambassador Hachigian served as the second U.S. Ambassador to the Association of Southeast Asian Nations (ASEAN) in the Obama Administration.  Earlier, she was a Senior Fellow and a Senior Vice President at the Center for American Progress focused on Asia policy and U.S.-China relations. Before that, Ambassador Hachigian was the director of the RAND Center for Asia Pacific Policy for four years. 

Ambassador Hachigian served on the staff of the National Security Council in the Clinton White House from 1998-1999. She is the editor of Debating China: The U.S. – China Relationship in Ten Conversations (Oxford University Press, 2014) and co-author of The Next American Century: How the U.S. Can Thrive as Other Powers Rise (Simon & Schuster, 2008).  She went to Yale University and got her JD from Stanford University.

Tressa Steffen Guenov is Director for Programs and Operations & Senior Fellow, Scowcroft Center for Security Studies at the Atlantic Council. She previously served as Principal Deputy Assistant Secretary of Defense for International Security Affairs (ISA), Office of the Under Secretary of Defense for Policy (OUSDP). In that role she supported the Assistant Secretary of Defense/ISA in a range of policy, leadership, management, and advisory capacities for the offices of African Affairs; European and NATO Policy; the Middle East; and Russia, Ukraine, and Eurasia.

Previously, Tressa was Senior Adviser to Deputy Secretary of Defense Dr. Kathleen Hicks, where she supported the Deputy on a variety of strategy development and stakeholder engagement efforts. Tressa also served as Assistant Secretary of Defense for Legislative Affairs (Acting) and PDASD for Legislative Affairs from 2015-2017. In her government career she also served in the State Department as a Presidential Management Fellow, as a special assistant to USDP and the Principal Deputy USDP, and as a country director for Central Asia issues.

Linda Robinson is Senior Fellow for Women and Foreign Policy at the Council on Foreign Relations, where she is currently writing a book about women political leaders and leadership archetypes. Robinson is a national security and foreign affairs expert, best-selling author, and prize-winning former foreign correspondent. She has testified before Congress multiple times on national security, the Middle East, and military issues. She is the author of three critically acclaimed and best-selling books about Afghanistan, Iraq and the special forces, One Hundred Victories (2013), Tell Me How This Ends (2008), and Masters of Chaos (2004).

She has served as chair of the Army War College Board of Visitors, for which she received the Army’s Outstanding Civilian Service Award, and as a member of the National Defense University board. She has also served as a senior adviser to the U.S. State Department, U.S. Central Command, and other military headquarters commands. As a volunteer advisor on the Biden presidential campaign, Robinson led the Special Operations / Low Intensity Conflict team of the Defense Working Group.

Before joining the Council on Foreign Relations, Robinson was a senior policy researcher and director of its Center for Middle East Public Policy at the RAND Corporation.

Anne Witkowsky previously served as Assistant Secretary of State for Conflict and Stabilization Operations.

Previously, Witkowsky served as the Co-Director of the Task Force on U.S. Strategy to Support Democracy and Counter Authoritarianism, a partnership of Freedom House. From 2014-2016, she served as the Deputy Assistant Secretary of Defense for Stability and Humanitarian Affairs in the Office of the Secretary of Defense (OSD), U.S. Department of Defense (DoD). She held policy responsibility for peacekeeping and stability operations; humanitarian assistance and disaster response; DoD support to the security of U.S. embassies; and international humanitarian law, rule of law and protection of human rights. Her office coordinated the DoD policy role in key Administration initiatives, such as the U.S. Ebola response, strengthening United Nations peace operations, and support to embassy security.

From 2009-2013, she served as the Deputy Coordinator for Homeland Security and Multilateral Affairs (DAS equivalent) in the Bureau of Counterterrorism (CT), U.S. Department of State, with responsibility for terrorist designations and sanctions; strengthening international transportation security; developing bilateral information sharing agreements; and building CT cooperation within multilateral organizations. In 2012-2013, she also served as the CT Bureau’s Acting Principal Deputy Coordinator.

Colonel (retired) Patricia Mulcahy is an accomplished human resources leader and senior executive with a career that spans over 40 years as an Army officer and a civil servant.  In her culminating assignment with the Department of the Air Force, Pat was the first Chief Human Capital Officer of the newest military service – the U.S. Space Force.  She was responsible for creating the Space Force’s first comprehensive human capital strategy, including establishing core values, talent management goals, uniform design, motto, and logo, and conducting the most extensive transfer plan for military members since the Air Force was established in 1947.

Pat was commissioned into the Army from the Siena College Reserve Officer Training Corps program.  She served at every level in the field of military personnel management and personnel service support including command of a company at Fort Devens and in Germany; a battalion at Fort Stewart; and a brigade in 18^th Airborne Corps that deployed to Iraq, as well as key staff assignments as the G-1, 3^rd Infantry Division; XO, Army G-1; and J-1, European Command.  Following her retirement from the Army in 2009, Pat served as a federal civilian employee as well as a member of the Senior Executive Service in several military personnel policy positions in the Office of the Under Secretary of Defense for Personnel and Readiness including the Director of Officer and Enlisted Personnel Management.  Pat also served as the Deputy Assistant Secretary of the Air Force for Force Management Integration.

Nicholas Rasmussen was the Executive Director at Global Internet Forum to Counter Terrorism (GIFCT). Previously, he was the Senior Director for National Security and Counterterrorism Programs at the McCain Institute for International Leadership. Rasmussen is a national security professional with over twenty-seven years in U.S. government service, including in senior counterterrorism posts at the White House and in the U.S. Intelligence Community from 2001 to 2017. He concluded his government career as Director of the National Counterterrorism Center (NCTC), leading more than 1,000 professionals from across the Intelligence Community, federal government, and federal contractor workforce.

Rasmussen served in senior posts across three administrations, including as Special Assistant to the President and Senior Director for Counterterrorism at the National Security Council staff under Presidents Bush and Obama before being appointed Director of NCTC by President Obama and continuing his tenure at the request of President Trump’s administration. From 1991-2001, he served in policy positions at the Department of State, focused on the Middle East.

Ms. Jennifer Gavito joined The Cohen Group as a Senior Advisor in 2024 and co-leads the firm’s Middle East practice. A career Senior Foreign Service officer with the rank of Minister-Counselor, Ms. Gavito spent over 25 years at the intersection of international and economic policy in senior diplomatic positions in Washington and throughout the Middle East and Europe, on the staff of the National Security Council, and as a senior advisor to the Department of Defense.

Ms. Gavito served most recently as the Acting Principal Deputy Assistant Secretary of State for Near Eastern Affairs where she coordinated policy recommendations for the Secretary of State and other senior US government leaders and oversaw the work of 22 diplomatic posts in 18 countries throughout the Middle East. Prior to that, she was the Deputy Assistant Secretary of State for Iraq and Iran. She concurrently served as Deputy Assistant Secretary of State for Press and Public Diplomacy, leading hundreds of staff in Washington and throughout the Middle East in strategic communications strategy and engagement. Prior to retiring from government service, Ms. Gavito was nominated by President Biden in January 2024 to serve as the US Ambassador to the State of Libya. Ms. Gavito has held a range of leadership roles at US embassies and consulates around the world. She was Minister-Counselor for Political Affairs at the US Embassy in London from 2018–2021, US Consul General to Bavaria from 2015–2018, and Political Counselor at US Consulate General Jerusalem from 2012–2015. Earlier assignments include, among others, Senior Foreign Policy Advisor to the Director for Strategy, Plans, and Programs (J-5) at the US Africa Command; Deputy Consul General at US Consulate General Dubai; Director for Syria and Lebanon at the National Security Council; Deputy Director for North Africa at the Department of State; and head of the Economic and Commercial Section at US Embassy Beirut.

Prior to her appointment as Principal Deputy Assistant Secretary in the Bureau of Conflict and Stabilization Operations, Elizabeth Fitzsimmons served as the U.S. Ambassador to the Togolese Republic from 2022-2024.  She was previously the Acting Principal Deputy Assistant Secretary for the Bureau of African Affairs. She has also served as Deputy Assistant Secretary of State for Central Africa and Public Diplomacy, the Acting Deputy Spokesperson for the Department, Deputy Executive Secretary to Secretaries Kerry and Tillerson, and Deputy Assistant Secretary for Public Diplomacy in the Bureau of South and Central Asian Affairs. She joined the Department in 1995, and at the time of her swearing in was the youngest member of the Foreign Service. She has served overseas in Taiwan, Hong Kong, Cambodia, India, Bulgaria, and Togo.

Julie Myers Wood has more than 30 years of experience in the public and private sector working on regulatory and enforcement issues from many perspectives, including as federal prosecutor, defense counsel, government investigator and compliance consultant. Key highlights include leading 15,000 special agents, lawyers, and officers at the U.S. Department of Homeland Security (DHS); helping the President choose cabinet members to serve in his administration; and co-founding a compliance software and consulting startup, which was later acquired by Guidepost Solutions. Ms. Wood is currently the Chief Executive Officer at Guidepost Solutions, a leading investigations, compliance, monitoring, and security firm with offices throughout the United States, as well as England, Colombia, Mexico and Singapore.

Before joining the private sector, Ms. Wood held several high-level positions with the U.S. government at four government agencies (DOJ, DHS, Treasury and Commerce), as well as the White House.  At the White House, she helped President George W. Bush identify key cabinet and sub-cabinet officials, including at DOJ, DHS, and DOD.  At DHS, she led 15,000 special agents, lawyers, and officers at Immigration and Customs Enforcement (ICE), the largest investigative component and second largest investigative agency in the federal government.  She oversaw the Homeland Security Investigations (HIS) division at ICE and the agency’s initiatives to combat human trafficking as well as its investigative work to prevent child exploitation. While serving as Assistant Secretary for Export Enforcement at the Department of Commerce, Ms. Wood was responsible for all dual-use export enforcement and special agents and she oversaw the enforcement of criminal and civil violations of export enforcement laws, including those involving telecommunications companies and encryption issues.  At the Department of Justice, she served as Chief of Staff for the Assistant Attorney General of DOJ’s Criminal Division and also prosecuted cases as an Assistant U.S. Attorney for the Eastern District of New York, including securities fraud, organized crime, money laundering, and bankruptcy fraud.  As a Deputy Assistant Secretary at the Department of Treasury, she developed policy and ran a team responsible for money laundering and customs enforcement matters.

Ms. Wood serves on several nonprofit boards and advisory boards relating to national security and immigration. She has been recognized with numerous industry and leadership awards, including the naming of the Julie L. Myers Conference Center at ICE Headquarters, in honor of her contributions and leadership at the Department of Homeland Security.

Julia McQuaid is the Vice President of the Strategy, Policy, and Plans Division at CNA. A seasoned political-military affairs expert, she brings over 20 years of experience advising the U.S. Navy, Department of Defense, and other national security agencies on strategic and operational issues. Her expertise spans areas such as strategic competition, adversary threats, emerging technologies/unmanned systems and autonomy, coalition building and alliance maintenance, terrorism, nuclear policy, and global maritime security.

As a researcher, McQuaid led several high-profile projects at CNA, including a congressionally directed assessment of the 17-year U.S. effort to defeat Al-Qaeda. Her work influenced substantial revisions in U.S. counterterrorism approaches overseas. She has also conducted in-depth research on adversary tactics, techniques, and procedures, particularly within non-state actor groups, and supported DOD efforts to develop countermeasures. Her analytical leadership extends to wargames and strategic studies, addressing global challenges with a focus on homeland defense, Europe, Africa and the Middle East. Additionally, she consults for the Defense Science Board. McQuaid holds a Master of Arts in Arab Studies from Georgetown University and a Bachelor of Arts in French and government from Franklin & Marshall College.

Jen Daskal is a Partner at Venable LLP. She is a national security legal and policy expert, with years of experience managing crisis, mitigating risk, and working at the intersection of technology, policy and law. From October 2023 to January 2025, Daskal served as the Deputy Homeland Security Advisor at the White House. Before that, she was the Principal Deputy Legal Advisor at the National Security Council and served as Acting General Counsel at the Department of Homeland Security, where she oversaw over 3,000 attorneys, including the Department’s cybersecurity, intelligence, litigation, and law enforcement legal teams.

Before joining the federal government, Daskal was a tenured law professor at American University Washington College of Law (WCL) until February 2021. In 2020, she founded and served as the first Faculty Director of WCL’s Tech, Law & Security Program. As a law professor, she wrote extensively on issues of data security and data privacy, testified multiple times before Congress, and won several awards for her work.

Ambassador (ret.) Greta C. Holtz is the President and CEO of Amideast, a leading non-profit organization which works to provide live-changing educational and exchange programs in the Middle East and North Africa and for U.S. students and faculty. Ambassador Holtz served as a career diplomat with extensive experience in the Middle East and North Africa. She was the U.S. Ambassador to Oman from 2012 to 2015, the Chargé d’affaires in Qatar from 2020-2021, and the Minister-Counselor for Provincial Affairs at the U.S. Embassy in Baghdad from 2009 to 2010. Additional overseas postings included Saudi Arabia, Yemen, Tunisia, Syria, and Turkey, and her domestic assignments included serving as the Deputy Assistant Secretary of State for Public Diplomacy and Strategic Communication in the Bureau of Near Eastern Affairs, and the Principal Deputy Assistant Secretary of State for South and Central Asia.

Ambassador Holtz’s broad experience encompasses a number of other positions, including as Chancellor and Vice Chancellor of the College of International Security Affairs at the National Defense University, and Senior U.S. Coordinator for Operations Allies Refuge (OAR) in Doha, Qatar.  Ambassador Holtz also served as the State Department’s Coordinator for the Organization for Security and Cooperation in Europe (OSCE), a Senior Watch Officer in the State Department’s Executive Secretariat’s Operations Center, a 24/7 crisis management and communications center, and the Senior Foreign Policy Advisor to the Commanding General of the U.S. Special Operations Command, providing strategic guidance for special operations missions worldwide.

Ambassador Holtz holds a BS in Political Science from Vanderbilt University, an MS in International Relations from the University of Kentucky’s Patterson School of Diplomacy and International Commerce, and an MS in National Security Studies from the National War College. She speaks French, Arabic, and Turkish, and is the recipient of numerous State Department awards, as well as awards from the Department of Defense and Central Intelligence Agency. She is a member of the American Academy of Diplomacy, a member of the Board of Advisors for Spirit of America, and a member of the Board of Directors for The Marshall Legacy Institute. Ambassador Holtz is a non-resident Distinguished Fellow at the University of South Florida’s Global and National Security Institute and is a distinguished graduate of University of Kentucky’s Patterson School of International relations and Commerce.

Leah Nodvin is the Director of Government and External Affairs at the BMW Group, where she supports U.S. – European relations and covers the federal sustainability portfolio. Previously, Leah served as the Chief of Staff for the Bureau of Europe and Eurasia at USAID. Prior to joining USAID, she worked on Capitol Hill and most recently served as the Staff Director for the House Foreign Affairs Subcommittee for Europe, working on behalf of Congressman Bill Keating of Massachusetts. During her time on Capitol Hill, Leah also served as a Professional Staff Member on the House Foreign Affairs Subcommittee for Europe as well as a Foreign Affairs Legislative Assistant for a Senior Member of the House Foreign Affairs Committee.

Prior to her time in Washington, Leah completed a research Fellowship with the Parliamentary Assembly of the Organization for Security and Cooperation in Europe in Vienna, Austria. Leah holds a bachelor’s degree from Boston University as well as master’s degrees from the University College’s London School of Slavonic and East European Studies and the Higher School of Economics in Moscow. Leah is currently completing a master’s degree in Defense and Strategic Studies at the Naval War College. Leah grew up in New Hampshire and speaks basic French, intermediate Russian, fluent German and is a native English speaker.

Mariah Sixkiller is a Director at Hakluyt & Co, a strategic consulting firm based in London.  She works in the San Francisco office and specializes in tech policy and regulatory matters for corporate and investor clients. Before joining Hakluyt in 2023, Mariah was the General Manager for Strategy in Microsoft’s US Department of Defense business. She also served as Director of Government Relations for Microsoft’s National Security Government Affairs team, focusing on public policy related to cloud, AI, quantum, and national security matters.

Johnnie Kaberle is a Senior Vice President at WestExec Advisors, where she helps clients navigate the intersection of Congress, the Department of Defense, and the intelligence community.  Prior to joining WestExec, Johnnie spent over three decades on Capitol Hill, culminating as Staff Director of the House Defense Appropriations Subcommittee and Deputy Staff Director of the full Appropriations Committee. In that role, she led bipartisan negotiations and shaped hundreds of billions in national security funding—playing a central role in advancing innovation, acquisition reform, and capability delivery to the warfighter.  Today, Johnnie draws on that deep institutional experience to help clients understand how decisions are made in Washington, identify and pursue strategic opportunities, and build lasting relationships with key stakeholders. She also teaches legislative negotiation and is known for her ability to help clients “decode” complex government processes and deliver impact where it matters most.

Reta Jo Lewis most recently served as President and Chair of the Export Import Bank.  Previously, she was Senior Fellow and Director of Congressional Affairs at The German Marshall Fund of the United States where she was the principal liaison between GMF and Congress and built extensive congressional relationships.  During the Obama Administration, from 2010 to 2013, she served as the U. S. Department of States’ first-ever Special Representative for Global Intergovernmental Affairs, under Secretaries of State Hillary Clinton and John Kerry. Lewis led the office charged with building strategic peer- to-peer relationships between the Department of State, U.S. state and local officials, and their foreign counterparts. In her post, she served as the State Department’s lead interlocutor in negotiating and executing the first historic agreements to solidify subnational cooperation and engagement efforts with BRICS (Brazil, Russia, India, China, and South Africa) countries and with targeted countries in the European Union. She was the principal architect that led the global engagement of U.S. state and local government leaders’ integration into and strategy regarding sustainability and climate change to RIO+20, COP-16, COP-17 and COP-18. In 2013, she was awarded the Secretary’s Distinguished Service Award.

Mary O’Brien is a retired U.S. Air Force lieutenant general officer and a leader in cybersecurity, intelligence, emerging technology, and national security. With 34 years of distinguished military service, she commanded at every level of the Air Force and served in pivotal staff leadership roles, including the Joint Staff Director of Command, Control, Communications and Computer/Cyber, and Chief Information Officer, the Air Force Deputy Chief of Staff for Intelligence, Surveillance, Reconnaissance, and Cyber Effects Operations, and the Director of Intelligence, U.S. Cyber Command. An innovator, Mary pioneered advancements in the integration of unmanned aerial vehicles, networked weapons, and advanced intelligence sensors, significantly enhancing military operational capabilities. Mary is also a proud recipient of the National Defense University College of Information and Cyberspace Rear Admiral Grace Hopper Award, recognizing her innovative contributions to the fields of information and cyberspace.

She is the CEO of Mary O’Brien Strategies, LLC, a consulting business which provides clients with expert guidance to navigate complex digital challenges, focusing on risk mitigation, technology integration, and resilience-building strategies.

Mary Beth Bruggeman spent eight years as an active-duty Marine combat engineer. Upon leaving active duty, Mary Beth worked for iRobot Corporation for four years, advancing their work on counter-IED robotics, spent time as a stay-at-home mom and Marine wife, and then started a fitness and nutrition coaching business.

Mary Beth joined the Mission Continues team in 2015 as the Executive Director for the Southeast Region. In 2019, Mary Beth assumed the role of President of The Mission Continues. Mary Beth has degrees from the U.S. Naval Academy (BS) and Georgetown University (MPP), and is an alum of the George W. Bush Institute’s Stand-To Veteran Leadership Program. She lives in Fairfax Station, VA, with her husband Brian, a retired Marine, and their three kids.

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Dani Schulkin is Director of the Democracy Initiative at Just Security at NYU School of Law. Schulkin formerly served as Senior Counsel to the Deputy Attorney General and Senior Advisor to the Homeland Security Advisor at the White House. Her work spans national security, democratic governance, and administrative law.

Schulkin served as Senior Counsel to the Deputy Attorney General at the U.S. Department of Justice, where she coordinated national security policy and led on issues ranging from election security and foreign malign influence to international synthetic opioid trafficking. She was also Senior Advisor to the Homeland Security Advisor at the National Security Council (NSC), managing domestic crisis response, terrorism prevention, and other domestic security issues from the White House. She began her service in the Biden Administration with the Office of the Staff Secretary, working on the team charged with reviewing all presidential briefing memos and executive actions.

‍Schulkin has held roles at the Administrative Conference of the United States (ACUS), the New York Attorney General’s Bureau of Internet and Technology, and the U.S. Attorney’s Office for the Eastern District of New York. She began her legal career as a Legal Fellow at Just Security. Her writing has appeared in The New York Times, Slate, Yale Journal on Regulation, the University of Pennsylvania Regulatory Review, and Just Security, covering domestic terrorism, democratic governance, and national security. She holds a J.D. from NYU School of Law, where she received the Vanderbilt Medal and was Editor-in-Chief of the Journal of Legislation and Public Policy, and a B.A. from Harvard University, where she was Captain of the Harvard Women’s Swim and Dive Team.

Alexis Prieur L’Heureux is Vice President at WestExec Advisors.

Prior to joining WestExec, Alexis most recently served as Chief of Staff for Congressman Seth Moulton (MA-06). Alexis ran his congressional office, including his work on the House Armed Services, Transportation and Infrastructure, and Budget Committees, and was also a Senior Advisor for his political action committee, Serve America. Alexis also served on President Joe Biden’s Presidential Transition Team as the lead for Department of Defense appointments. Before working on the Hill, Alexis served in President Obama’s Administration as a national security policy advisor at the Department of Defense (2009-2012, 2014-2017) and as a Deputy Executive Secretary at the U.S. Department of Treasury (2013-2014).

In addition to her government experience, Alexis has also worked to protect the vote for numerous campaigns at both the state and national levels, starting with then-Senator Obama’s 2008 primary campaign in New Hampshire. In 2017, Alexis co-founded All Voting Is Local, which is a non-profit that works to increase access to voting by improving how elections are run at the local level.

Heidi is a General Partner and Executive Vice President at America’s Frontier Fund, a venture capital fund that invests in frontier technologies vital to the long-term competitiveness and national security of the United States and close allies. She is also an Adjunct Senior Fellow at the Council on Foreign Relations where she specializes in Economic Statecraft and leads the high-level Roundtable Series on Geoeconomics. She is the former CEO, and remains a Partner, at International Capital Strategies – a boutique advisory firm that provides clients with market-relevant insights on the intersection of macroeconomics, geopolitics, policy and global financial markets.

She served on the Biden Treasury Department Transition team as lead on International Affairs through January 2021. From August 2019 through the 2020 election, she led and built Biden’s international economic policy team for his Presidential campaign, crafting and contributing to incoming Administration policy on national economic security, China policy, supply chain resilience, trade, energy and energy security, the IMF and Multilateral Development Banks, sanctions and export controls, as well as to the domestic competitiveness and investment agenda.

Essye Miller’s public service career spanned morethan three decades. She served most recently as Principal Deputy Chief Information Officer and Acting Defense Chief Information Officer at the Department of Defense, selected by former Secretary of Defense Jim Mattis. As a career member of the Senior Executive Service, Miller has deep expertise in information management and technology, cybersecurity, and critical satellite communications. She advises corporations on expansion into the public sector, the federal market, product portfolios, and executive strategy. Miller also serves as an advisor to the Information Security and Privacy Advisory Board, the Department of Commerce, and NGOs.