Michael J. Mazarr is a senior political scientist at the RAND Corporation. Previously he worked at the U.S. National War College, where he was professor and associate dean of academics; as president of the Henry L. Stimson Center; senior fellow at the Center for Strategic and International Studies; senior defense aide on Capitol Hill; and as a special assistant to the Chairman of the Joint Chiefs of Staff. His primary interests are U.S. defense policy and force structure, disinformation and information manipulation, East Asian security, nuclear weapons and deterrence, and judgment and decision-making under uncertainty. Mazarr holds a Ph.D. in public policy from the University of Maryland.