Airman 1st Class Riley Bryant, 28th Aircraft Maintenance Unit crew chief, inspects an auxiliary power unit in the cockpit of a B-1B Lancer during Global Thunder 20 at Dyess Air Force Base, Texas, Oct. 22, 2019. Large-scale exercises, like Global Thunder, involve extensive planning and coordination to provide unique training for assigned units and allies. (U.S. Air Force photo by Staff Sgt. David Owsianka)