Col. Craig Wills, 39th Air Base Wing commander, passes the guidon Maj. John Mora, 39th Maintenance Squadron commander, during the 39th MXS change of command ceremony June 23, 2015, at Incirlik Air Base, Turkey. A change of command ceremony is a tradition that represents a formal transfer of authority and responsibility from the outgoing commander to the incoming commander. (U.S. Air Force photo by Senior Airman Michael Battles/Released)