190703-F-LG031-1044
Col Heather Cook, 319th Mission Support Group commander, passes 319th Civil Engineer Squadron guidon to Lt Col Jospeh Diciolla, 319 CES commander, during the 319 CES change of command ceremony as Diciolla assumes command July 3, 2019, on Grand Forks Air Force Base, North Dakota. The 319 CES operates and maintains base infrastructure. (U.S. Air Force photo by Senior Airman Elijaih Tiggs)