Colonel Leon J. Perkowski, Ph.D., is the Vice Commandant of Air University’s Air Command and Staff College and an Assistant Professor of Military and Security Studies. After serving in various assignments supporting Air Force and Army operations, Col Perkowski has taught and worked in administration at the U.S. Air Force Air Command and Staff College and Air War College since 2006. Dr. Perkowski’s specialty is the politics and discourse of U.S. troop reductions in South Korea in the 1970s and the concept of deterrence credibility in the late Cold War. His academic interests include the Cold War, deterrence credibility and reputation, national security policy formulation, war and US society, the Anglo-American power transition, and the history of US foreign relations in general.