Lt. Gen. Henry A. "Trey" Obering (ret.) is the former Director of the Missile Defense Agency, Office of the Secretary of Defense, Washington, D.C. The MDA is Presidentially-chartered and mandated by Congress to acquire highly effective ballistic missile defense systems for forward-deployed and expeditionary elements of the U.S. armed forces. Additionally, the agency will develop options and, if directed, acquire systems for ballistic missile defense of the United States. As the former Director, General Obering was the Acquisition Executive for all Ballistic missile defense systems and programs.

Lt. Gen. Henry A. "Trey" Obering (ret.), a native of Birmingham, Ala., entered the Air Force in 1973 after completing the University of Notre Dame's ROTC program as a distinguished graduate. He received his pilot wings in 1975 and flew operational assignments in the F-4E. The general was later assigned to the Space Shuttle program and participated in 15 space shuttle launches as a NASA orbiter project engineer and was responsible for integrating firing room launch operations. Other assignments include tours with the Air Force Inspector General, the Defense Mapping Agency and Electronic Systems Center.

Prior to his assignment at MDA, the general planned and programmed 68 joint, Air Force and international programs with a $28 billion budget as Mission Area Director for Information Dominance on the Air Staff.