Col. Timothy Bray (left), 82nd Medical Group commander, passes the 82nd Aerospace Medicine Squadron guidon to Lt. Col. Kirk Winger, incoming 82nd AMDS commander, at a change of command ceremony at Bldg. 1900 on Sheppard Air Force Base, Texas, July 1, 2010. Colonel Winger arrived at Sheppard after serving as the 86th AMDS Public Health flight commander at Ramstein Air Base, Germany. (U.S. Air Force photo/ LouAnne Sledge)