Lt. Gen. Giovanni Tuck, 18th Air Force commander, presents the 375th Air Mobility Wing guidon to Col. John Howard, signifying the start of his command of the wing during a change of command ceremony July 24, 2017 at Scott Air Force Base, Ill. Howard arrived from Royal Air Force Mildenhall, England, where he served as the vice commander for the 100th Air Refueling Wing. (U.S. Air Force photo by Airman Chad Gorecki)