Col. Dan Walls, 23d Wing commander, enters an A-10C Thunderbolt II July 16, 2020, at Moody Air Force Base, Georgia. Shark Flag, a four-day training opportunity, was focused on integration and interoperability across joint assets in a tactical environment. Shark Flag 20-03 was specifically focused on air assets in an air-to-ground environment and included participants from the U.S. Army, Marine Corps and Air Force. (U.S. Air Force photo by Senior Airman Erick Requadt)