Airmen from the Connecticut, Montana, Missouri and Kentucky Air National Guard attend a training class on hydraulic testing at the Air National Guard’s Air Dominance Center in Savannah, Ga., June 14, 2016. The class is part of Maintenance University here, a weeklong course designed to provide intensive instruction in aircraft maintenance. Now in its eighth year, Maintenance University is sponsored by the 123rd Airlift Wing. (U.S. Air National Guard photo by Lt. Col. Dale Greer)