People Category: AIAA DEFENSE Forum 2025

Christine Michienzi

Dr. Christine (Chris) Michienzi is a former senior government executive with extensive national and international leadership experience. Her strategic advice and counsel are regularly sought on issues relating to global supply chains and defense industrial base resiliency and security.  She has prepared high-level briefings for the President, the National Security Advisor, the Secretary of Defense, and the Chairman of the Joint Chiefs of Staff, and she regularly briefed Members of Congress and their Staffs.

Today, Dr. Michienzi owns MMR Defense Solutions, LLC, a consulting firm that leverages her deep expertise and brings innovative solutions to help companies successfully address supply chain and technical issues using strategy, policy, and investment approaches.  She is a sought-after keynote speaker and panelist (moderator and participant) at national and international conferences and events, and a published author of articles, op-eds, and expert quotes in national news journals – Defense News, Wall Street Journal, etc., as well as a guest on multiple podcasts discussing defense and national security topics.

Dr. Michienzi served in the Office of the Secretary of Defense (OSD), where she was the Senior Technology Advisor for the Undersecretary of Defense (USD) for Acquisition and Sustainment, advising the USD and other senior DoD leaders on innovative solutions for the design, development, and production of DoD systems, including facilitating technology transitions to provide cutting edge capability to the warfighter.  She has extensive technical, strategy, and policy expertise in missiles and munitions, including hypersonics, nuclear, and space systems; microelectronics; and critical chemicals, and the supply chains that manufacture them.

Dr. Michienzi provided technical expertise and strategic and policy guidance on the industrial base and supply chains to the USD and the Assistant Secretary of Defense for Industrial Base Policy (IBP), where she served as the Chief Technology Officer and Acting Deputy Assistant Secretary of Defense.  She bridged government (U.S. and international) and private sector endeavors as she led the Department’s efforts to rapidly increase industrial base capacity to accelerate the replenishment of weapons systems donated to Ukraine, enabling DoD to donate even more.  Dr. Michienzi also utilized her Defense Production Act (DPA) expertise to support Ukraine, Taiwan, COVID response, and other critical national security supply chain efforts.

Dr. Michienzi also served as the USD’s lead for microelectronics and was instrumental to ensuring inclusion of national security requirements and sustainability initiatives in the Creating Helpful Incentives to Produce Semiconductors (CHIPS) Act authorization and appropriation by collaborating with Congressional members and staffers, as well as serving as the A&S liaison to the National Security Council and the Department of Commerce.

Previously she served in various roles in IBP – ensuring DoD assessed the capabilities, health, and resiliency of DoD supply chains, which the Department relies on for current and future warfighting capabilities, and developed mitigations to address identified risks and issues in all industrial sectors, enhancing Department readiness.

Dr. Michienzi began her DoD career with the Navy, where she served as the missiles and munitions technical expert at the Program Executive Office, Integrated Warfare Systems.  She spent nearly two decades at a Navy laboratory, developing new explosives and propellants for DoD weapons systems, for which she holds five patents, and eventually became the Research, Development, Test and Evaluation Department Head, leading over 140 scientists and engineers performing research for Navy weapons systems.  She received both the Naval Sea Systems Command Scientist of the Year Award and the Assistant Secretary of the Navy for Research, Development and Acquisition Scientist of the Year Award for her research achievements.

Most recently, Dr. Michienzi received the Secretary of Defense’s Medal for Civilian Career Service, and she previously received the Secretary of Defense’s Medal for Exceptional Civilian Service.

Dr. Michienzi received her Bachelor of Science degree in Chemistry from the University of Maryland, College Park (UMCP), and her Doctorate in Analytical Chemistry, also from UMCP.

Gillian Bussey

Dr. Gillian Bussey is currently the Deputy Chief Science Office, US Space Force,advising the Space Force on S&T issues since November 2024. Previously, she provided analytic support on China competition to the Deputy Secretary of Defense at OSD CAPE and was a Special Assistant to the USAF Chief Scientist from 2022 to 2024 where she advised the Chief Scientist on technical matters relevant to the USAF, particularly nuclear S&T; nuclear command, control, and communications (NC3); hypersonics; air platforms and propulsion; testing and evaluation; and quantum mechanics.

From 2020 to mid-2022, she was the inaugural director of the Joint Hypersonics Transition Office(JHTO) in the Office of the Undersecretary of Defense, Research, and Engineering, Advanced Capabilities. As director, she was responsible for DoD’s integrated S&T strategy for hypersonics, working with foreign allies, setting up and overseeing the University Consortium of Applied Hypersonics (UCAH), and providing oversightof DoD hypersonics programs. She also set up a JHTO Systems Engineering Field Activity (SEFA) at NSWC Crane. She set up the office in April 2020 according to Congressional direction and oversaw budgets up to $100m and office of 14 people.

She was a special advisor to the Assistant Director, Hypersonics office as a detailee from the CIAadvising the department on hypersonics weapons, technologies, and applicable missile defenses from June 2018 to April 2020. As the acting director for Aerospace Technologies from July 2019 to February 2020, she was also responsible for overseeing DoD activities in air platforms and related propulsion technologies.

She spent six months on assignment at the Defence Science Technology Group (DSTG)’s AppliedHypersonics Branch near Brisbane, Australia in 2015 and 2016 supporting the joint US Air Force-DSTG HIFIRE program and DSTG’s hypersonics programs.

She was CIA’s hypersonics systems and technologies analyst in the Weapons Counterproliferation Mission Center from 2011 to July 2018. She analyzed technical information associated with hypersonicsystems and air-launched weapons from May 2007 to September 2012.

She has degrees in physics and political science from the Massachusetts Institute of Technology (2005)and a M.S. and Ph.D in aerospace engineering from the University of Maryland, College Park (2009, 2012). While at the University of Maryland, her research focused on hypersonics. In 2022, the UMD Clark School of Engineering named her as an inaugural member of its Early Career Distinguished Alumni Society. She is an AIAA associate fellow.