Experienced senior executive with extensive expertise in geopolitics, deterrence, outer space security, defense policy, national security strategy, arms control, emerging technology, foreign policy, and strategic stability. Proven leadership in managing large organizations, engaging with international partners, and developing strategic policies.
Overview
31
31
years of professional experience
Work History
President
Chevalier Strategic Advisors, LLC
07.2024 - Current
Provide strategic advice to clients on a variety of national and international security issues
Key areas of focus include geopolitical risk, defense policy, national security strategy, strategic nuclear modernization, deterrence, outer space security, missile defense, military-technical cooperation with allies and partners, and the impact of emerging technologies on the future of warfare
Principal Deputy Administrator (Deputy Under Secretary-level)
National Nuclear Security Administration, U.S. Department of Energy
08.2021 - 04.2024
Led60,000-person agency with $24.0 billion budget responsible for building and maintaining the U.S
Nuclear stockpile and its associated infrastructure, advancing global nuclear threat reduction around the world, and providing the U.S
Navy with nuclear propulsion for its aircraft carriers and submarines
Coordinated closely with the senior leadership of the three NNSA national laboratories (i.e., Lawrence Livermore, Los Alamos, and Sandia) on a variety of technical, policy, and administrative issues
Key focus areas included nuclear deterrence policy, outer space security, cyber security, artificial intelligence, export controls, semiconductors, counter-unmanned aerial systems, liaison with U.S
Military combatant commands, global threat reduction, nuclear counterterrorism, management, and personnel issues
Senior Fellow and Co-Director, Center for Security, Strategy, and Technology, Foreign Policy Program
The Brookings Institution
03.2018 - 07.2021
Conducted research and hosted events on defense policy, geopolitics, nuclear strategy, nuclear modernization, outer space security, missile defense, arms control, nonproliferation, and the impact of artificial intelligence and other emerging technologies on the future of warfare and geopolitics
Provided expert witness testimony to congressional committees on numerous national security topics
Adjunct Assistant Professor, Security Studies Program
Georgetown University
01.2021 - 06.2021
Taught graduate-level course in the Security Studies Programs titled “Outer Space, Strategic Technologies, and the Future of International Security,” which focused on the impact that outer space and other strategic technologies (e.g., cyber, nuclear, missile defense, and undersea communications cables) are having on the evolving international security environment
Principal Director and Chief of Government Relations
The Aerospace Corporation
07.2017 - 03.2018
Led the company’s engagements with Congress and the Executive Branch on outer space security and strategic nuclear modernization issues
Assistant Secretary of State, Bureau for Arms Control, Verification, and Compliance
U.S. Department of State
12.2014 - 01.2017
Led the State Department’s engagements with allies, partners, U.S
Interagency, and Congress on strategic policy issues including nuclear deterrence, arms control, outer space security, missile defense, and verification technologies
Represented the U.S
In international diplomatic forums including the Conference on Disarmament in Geneva and the United Nations First Committee in New York
Coordinated U.S
Efforts to improve air and missile defense coordination and integration with states of the Gulf Cooperation Council
Deputy Assistant Secretary of State for Space and Defense Policy, Bureau for Arms Control, Verification, and Compliance
U.S. Department of State
06.2009 - 12.2014
Negotiated the missile defense basing agreements with Poland, Romania, and Turkey
Established and implemented outer space security dialogues with a variety of countries including Japan, Australia, India, Russia, China, France, and the United Kingdom
Professional Staff Member, Committee on Armed Services
U.S. House of Representatives
01.2007 - 06.2009
Served as the lead staffer on the committee responsible for overseeing missile defense policy, programs, and budgets
Prepared congressional members for oversight hearings and engagements with government and industry leaders
Professional Staff Member, Permanent Select Committee on Intelligence
U.S. House of Representatives
12.2005 - 01.2007
Responsible for oversight of U.S
Intelligence programs including the military intelligence programs, counter-narcotics, counterproliferation and nonproliferation
Prepared congressional members for oversight hearings and engagements with government and industry leaders
Foreign Affairs Officer, Office of the Assistant Secretary of Defense for International Security Policy
U.S. Department of Defense
01.2001 - 12.2005
Served as the lead working-level official responsible for advancing missile defense cooperation with the North Atlantic Treaty Organization
Worked with British and Danish officials to facilitate the upgrade of the Fylingdales (England) and Thule (Greenland) early warning radars to support U.S
Homeland missile defense
Special Assistant, Office of the Assistant Secretary of Defense for Strategy and Threat Reduction
U.S. Department of Defense
08.1999 - 01.2001
Served as the Assistant Secretary’s liaison with the Department of Defense’s public and legislative affairs offices on numerous international security issues including nuclear policy and strategy, missile defense, nonproliferation, counterproliferation, relations with the states of the Former Soviet Union, export controls, defense strategy and requirements, and outer space security
National Security Analyst, National Security Studies and Strategy Group
Science Applications International Corporation
01.1996 - 08.1998
Conducted research and tracked congressional action on numerous international security issues for several Department of Defense clients, including the Office of the Secretary of Defense and the U.S
Air Force
Legislative Correspondent, Office of U.S. Senator John F. Kerry (D-MA)
U.S. Senate
06.1994 - 12.1995
Conducted legislative research and prepared the Senator’s correspondence for his constituents on numerous public policy issues
Education
M.A. - War Studies
King’s College, University of London
01.1999
B.A. - History
American University
01.1994
Skills
Leadership team building
Organizational leadership
Strategic planning
Operational excellence
Awards
Department of Energy/National Nuclear Security Administration Distinguished Career Award, Department of Defense Exceptional Public Service Award, Office of the Secretary of Defense Award for Excellence, Office of the Secretary of Defense Medal for Exceptional Civilian Service, U.S. Department of State Superior Honor Award, Ordinul National Serviciul Credincios (Knight) from Romania
Timeline
President
Chevalier Strategic Advisors, LLC
07.2024 - Current
Principal Deputy Administrator (Deputy Under Secretary-level)
National Nuclear Security Administration, U.S. Department of Energy
08.2021 - 04.2024
Adjunct Assistant Professor, Security Studies Program
Georgetown University
01.2021 - 06.2021
Senior Fellow and Co-Director, Center for Security, Strategy, and Technology, Foreign Policy Program
The Brookings Institution
03.2018 - 07.2021
Principal Director and Chief of Government Relations
The Aerospace Corporation
07.2017 - 03.2018
Assistant Secretary of State, Bureau for Arms Control, Verification, and Compliance
U.S. Department of State
12.2014 - 01.2017
Deputy Assistant Secretary of State for Space and Defense Policy, Bureau for Arms Control, Verification, and Compliance
U.S. Department of State
06.2009 - 12.2014
Professional Staff Member, Committee on Armed Services
U.S. House of Representatives
01.2007 - 06.2009
Professional Staff Member, Permanent Select Committee on Intelligence
U.S. House of Representatives
12.2005 - 01.2007
Foreign Affairs Officer, Office of the Assistant Secretary of Defense for International Security Policy
U.S. Department of Defense
01.2001 - 12.2005
Special Assistant, Office of the Assistant Secretary of Defense for Strategy and Threat Reduction
U.S. Department of Defense
08.1999 - 01.2001
National Security Analyst, National Security Studies and Strategy Group
Science Applications International Corporation
01.1996 - 08.1998
Legislative Correspondent, Office of U.S. Senator John F. Kerry (D-MA)
U.S. Senate
06.1994 - 12.1995
M.A. - War Studies
King’s College, University of London
B.A. - History
American University
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