Brig. Gen. Mark Weatherington, 8th Air Force commander,

Brig. Gen. Mark Weatherington, 8th Air Force commander, Senior Master Sgt. Joshua Crosby, Barksdale chief master sergeant select, and Chief Master Sgt. Melvina Smith, 8th AF command chief, pose for a photo after being notified of his promotion to chief master sergeant at Barksdale Air Force Base, La., Dec. 3, 2020. 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 Senior Airman Lillian Miller)