SEYMOUR JOHNSON AIR FORCE BASE, N.C. —  Col. Tammy McElhaney, left, 4th Mission Support Group commander, passes the guidon to Lt. Col. Hans Winkler, incoming 4th Civil Engineer Squadron commander, as he assumes command of the 4th CES during a change of command ceremony at Seymour Johnson Air Force Base, North Carolina, July 22, 2022.…… read more »