Col. Thomas Bacon, 39th Medical Group commander, speaks to those in attendance after taking command during the 39th MDG change of command ceremony Aug. 7, 2015, at Incirlik Air Base, Turkey. Prior to taking command, Bacon was the commander of the 99th Medical Operations Squadron, Nellis Air Force Base, Nev. (U.S. Air Force photo by Senior Airman Krystal Ardrey/Released)