ELLSWORTH AIR FORCE BASE, S.D. -- Senior leadership assigned to the 28th Bomb Wing gather for a group photo with Senior Master Sgt. Nathaniel Thompson, 37th Aircraft Maintenance Unit superintendent, center, after surprising him with the news that he was selected for promotion to chief master sergeant at Ellsworth Air Force Base, South Dakota, Nov. 29, 2023. All chief master sergeants are expected to serve as mentors for non-commissioned officers and junior enlisted members, and to serve as advisers to unit commanders and senior officers. (U.S. Air Force photo by Airman 1st Class Brittany Kenney)