A crew chief assigned to the 28th Aircraft Maintenance Squadron marshals a B-1B Lancer from the tarmac to participate in a Bomber Task Force mission at Ellsworth Air Force Base, S.D., Sept. 7, 2021. The B-1B is a long range, multi-role bomber that carries the largest payload of precision guided and unguided munitions in the Air Force inventory. (U.S. Air Force photo by Airman 1st Class Quentin K. Marx)