A Missouri Air National Guard Airman conducts pre-flight checks for a U.S. Air Force C-130 Hercules for an Agile Combat Employment exercise at Joint Base Langley-Eustis, Virginia, Jan. 13, 2021. The Missouri Air National Guard provided two U.S. Air Force C-130 Hercules aircraft to be used during the ACE exercise. (U.S. Air Force photo by Senior Airman Marcus M. Bullock)