Michael J. Mazarr is a senior political scientist at the RAND Corporation. He comes to RAND from the U.S. National War College where he was professor and associate dean of academics. He has also worked in research institutes, 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, East Asian security, nuclear weapons and deterrence, and judgment and decisionmaking under uncertainty. Mazarr holds a Ph.D. in public policy from the University of Maryland.