U.S. Air Force Maj. Gen. Randall Ogden, 4th Air Force commander, salutes Reserve Citizen Airmen from the 624th Regional Support Group during an assumption of command ceremony at Joint Base Pearl Harbor-Hickam, Hawaii, July 7, 2018. The 624th RSG is the largest Air Force Reserve presence in the Pacific and provides combat-ready Airmen who specialize in aerial port, aeromedical support and civil engineering operations for worldwide employment. (U.S. Air Force photo by Jerry R. Bynum)