Senior Airman Sawyer Ezzell, a crew chief with the 123rd Maintenance Group, 123rd Airlift Wing, services the liquid oxygen system of a Kentucky Air National Guard C-130 Hercules at Aviano Air Base, Italy, May 15, 2019, as part of exercise Immediate Response 2019. The annual exercise focuses on allied airborne forces’ ability to quickly and effectively respond to crisis situations as an interoperable, multinational team. (U.S. Air National Guard photo by Staff Sgt. Joshua Horton)