M. Elaine Bunn, a consultant on strategic issues, is a non-resident fellow at CSIS’ Project on Nuclear Issues, NDU’s Center for the Study of Weapons of Mass Destruction, and the Royal United Services Institute. She served as Deputy Assistant Secretary of Defense for Nuclear and Missile Defense Policy from March 2013 to January 2017.  Previously, she worked in international security policy at NDU’s Institute for National Strategic Studies (2000-2013) and in the Office of the Secretary of Defense (1980-2000). She has published articles and book chapters on deterrence, assurance of allies, strategic planning, nuclear policy, and missile defense, and speaks frequently on these issues at U.S. and international conferences.