Lt. Col. Mary Clark, the new Detachment 7 commander, accepts the unit’s guidon from Brig. Gen. Andrew Gebara, Air Force Global Strike Command A5/8 director, during the assumption of command ceremony at Duke Field, Fla., Dec. 18, 2019. The new AFGSC unit is responsible for testing and evaluating the new MH-139A helicopter. (U.S. Air Force photo by Sam King Jr.)