Lieutenant General Patrick J. O' Reilly is the Director for the Missile Defense Agency (MDA), Office of the Secretary of Defense, Pentagon, Washington, DC. In this capacity, he oversees MDA's worldwide mission to develop a capability to defend deployed forces, the United States, Allies, and friends against ballistic missile attacks.

During his career, he served in both command and staff officer positions in a variety of operational units including the 1st Cavalry Division, the 3rd Support Command, Germany, and as an Assistant Professor of Physics at the United States Military Academy. As an Acquisition Officer, he served as Program Manager for Directed Energy Programs, PATRIOT PAC-3 Missile, Terminal High Altitude Area Defense Missile System, Ground-based Midcourse Defense Program, and as the Army Program Executive Officer for Combat Support and Combat Service Support.

Lieutenant General O'Reilly is a graduate of the U.S. Military Academy and has Masters Degrees in Physics, National Security and Strategic Studies, and Business. Lieutenant General O'Reilly is a graduate of the U.S. Army Command and Staff College, the U.S. Naval College of Command and Staff, and the U.S. Army War College.

A reception will be held in the West Foyer lobby of the Stewart Center immediately following the lecture.