LANGLEY AIR FORCE BASE, Va. -- The 633d Medical Group and the 633d Mission Support Group receive their new guidons during the 633d Air Base Wing activation and change-of-command ceremony. The activation of the 633d ABW is the first step in fulfilling congress' 2005 Base Realignment and Closure decision that forms Joint Base Langley-Eustis later this month. (U.S. Air Force photo/Senior Airman Zachary Wolf)