Senior Airman Eric Burk (left) and Master Sgt. Judson Wisely, loadmasters from the Kentucky Air National Guard’s 123rd Operations Group, simulate an airdrop June 14, 2021, over mountain terrain in Puerto Rico as part of Maintenance University. Kentucky aircrews also re-certified on low-level tactical maneuvers and open-ocean flying during the week-long event. (U.S. Air National Guard photo by Staff Sgt. Clayton Wear)