Deborah G. Rosenblum

Acting Deputy Under Secretary of Defense for Acquisition & Sustainment

Ms. Deborah G. Rosenblum currently serves as the Acting Deputy Under Secretary of Defense for Acquisition and Sustainment (DUSD(A&S)). In this role, she is responsible to the Under Secretary of Defense for all matters pertaining to acquisition; contract administration; logistics and materiel readiness; installations and environment; operational energy; chemical, biological, and nuclear defense; the acquisition workforce; and the defense industrial base.

Prior to this appointment, she served as the Assistant Secretary of Defense for Nuclear, Chemical, and Biological Defense Programs (ASD(NCB)). In this capacity, she was the principal advisor to the Secretary, Deputy Secretary, and Under Secretary of Defense on nuclear weapons, nuclear energy, and biological and chemical programs.

While serving as the ASD(NCB), she perfomed the duties of the Assistant Secretary of Defense for Industrial Base Policy (ASD(IBP)). In this capacity, she developed and managed the Department’s policies and programs designed to maintain the U.S. defense industrial base; execute small business programs and policy; assess geo-economic events and trends; monitor and assess the impact of foreign investments in the U.S. (CFIUS) and assess impacts related to mergers and acquisitions.

Prior to her appointment as the Assistant Secretary of Defense, Rosenblum was the Executive Vice President at the Nuclear Threat Initiative (NTI). As part of NTI’s executive leadership team, she helped to oversee the organization’s operations, development, and programs, managing an annual operating budget of $25 million. Rosenblum also spent seven years as Vice President of The Cohen Group, an international consulting firm. She led numerous client focused teams, developing business opportunities in the defense and homeland security market, and her market assessments supported international merger and acquisition deals.

Prior to joining the private sector, Rosenblum served in senior positions with the U.S. Department of Defense, with a broad range of policy responsibilities, including representing the United States as a negotiator with the Democratic People's Republic of Korea on multiyear bilateral negotiations around its nuclear program.

Rosenblum holds a master's degree from Columbia University’s School of International and Public Affairs, and is a Phi Beta Kappa graduate with a bachelor's degree from Middlebury College. She is fluent in French.

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