Colonel (Ret) Jim Greer is the Defense Threat Reduction Agency (DTRA) and Joint Improvised Threat Defeat Organization (JIDO) Integrator at the Combined Arms Command. A former cavalry officer, he served thirty years in the US Army, commanding at all levels from platoon through Brigade. Jim served in operational units in CONUS, Germany, the Balkans and the Middle East. He served in US Army Training and Doctrine Command (TRADOC), primarily focused on leader, capabilities and doctrine development. He has significant concept development experience, co-writing concepts for Force XXI, Army After Next and Army Transformation. Jim was the Army representative to OSD-Net assessment 20XX Wargame Series developing concepts OSD and the Joint Staff. He is a former Director of the Army School of Advanced Military Studies (SAMS) and instructor in tactics at West Point. Jim is a veteran of six combat tours in Iraq, Afghanistan, and the Balkans, including serving as Chief of Staff of the Multi-National Security Transition Command – Iraq (MNSTC-I). Since leaving active duty, Jim has led the conduct of research for the Army Research Institute (ARI) and designed, developed and delivered instruction in leadership, strategic foresight, design, and strategic and operational planning. Dr. Greer holds a Doctorate in Education, with his dissertation subject as US Army leader self-development. A graduate of the United States Military Academy, he has a Masters Degree in Education, with a concentration in Psychological Counseling: as well as Masters Degrees in National Security from the National War College and Operational Planning from the School of Advanced Military Studies.