U.S. Air Force Col. Dennis Britten, 307th Medical Squadron commander, listens to Col. Steven Kirkpatrick, 307th Bomb Wing commander, during the 307th MDS change of command ceremony at Barksdale Air Force Base, Louisiana, September 7, 2019. Britten took command of the 307th MDS after serving as the squadron's chief of medical staff. (U.S. Air Force photo by Senior Airman Maxwell Daigle)