United States Department of Defense United States Department of Defense

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Christine H. Fox

Acting Deputy Secretary of Defense
9-11 Memorial

Christine H. Fox

Christine H. Fox was appointed by President Obama as Acting Deputy Secretary of Defense on December 5, 2013. With her appointment, Ms. Fox becomes the highest-ranking female official in history to serve in the Department of Defense.

Ms. Fox most recently served as a Senior Advisor to the National Security Analysis Department at The Johns Hopkins University Applied Physics Laboratory (APL) from August 2013 through November 2013.

Prior to joining APL, Ms. Fox served as the Director, Cost Assessment and Program Evaluation in the Office of the Secretary of Defense. She was appointed to that position in November 2009.  A Presidential appointee confirmed by the United States Senate, Ms. Fox served as the principal staff assistant to the Secretary of Defense for analyzing and evaluating plans, programs, and budgets in relation to U.S. defense objectives and resource constraints. 

Ms. Fox possesses three decades of experience as an analyst and research manager focusing on defense issues, with a special emphasis on operations.  She formerly served as the President of the Center for Naval Analyses (CNA), a Federally Funded Research and Development Center, and as the scientific analyst to the Chief of Naval Operations.  Prior to her appointment as President of CNA, Ms. Fox was the Vice President and Director of CNA’s Operations Evaluation Group, responsible for approximately 85 field representatives focused on helping operational commanders execute their missions.  She oversaw CNA’s analysis of real-world operations, including the operations in Bosnia and Kosovo in the 1990s, operations in Afghanistan immediately following the September 11th attacks, and the operation in Iraq in early 2003.

Ms. Fox served as a member of NASA’s Return to Flight Task Group, chartered by the NASA Administrator to certify the recommendations made by the Columbia Accident Investigation Board.  She was also a member of the Advisory Board of the Applied Physics Laboratory, University of Washington from 2007 until 2009. 

Ms. Fox holds an M.S. in Applied Mathematics, George Mason University, and a B.S. in Mathematics, George Mason University.