Lt. Col. Jason Telfer, 39th Medical Support Squadron commander, right, relinquishes command to Col. Christopher Estridge, 39th Medical Group commander, left, during the change of command ceremony June 13 2019, at Incirlik Air Base, Turkey. During his tenure, Telfer provided healthcare to approximately 4,200 U.S. and coalition forces stationed at Incirlik Air Base. (U.S. Air Force photo by Staff Sgt. Wisher)