Col. Joseph Harris, commander, 154th Maintenance Group prepares to hand a guidon to Lt. Col. Henry Kaufman during a 154th Maintenance Squadron change of command ceremony held Aug. 6, 2017 at Joint Base Pearl Harbor-Hickam. Kaufman became commander of the 154 MXS, which maintains F-22 Raptor, KC-135 Stratotanker, and C-17 Globemaster III aircraft in partnership with active duty counterparts from the 15th Wing. (U.S. Air National Guard photo by Senior Airman Orlando Corpuz)