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