Maj. Gen. Mark E. Weatherington, 8th Air Force and Joint-Global Strike Operations Center commander, presents the guidon of the 28th Bomb Wing to Col. Joseph L. Sheffield, the new 28th BW commander, during a change of command ceremony at Ellsworth Air Force Base, S.D., June 18, 2021. As commander, Sheffield takes responsibility of the base’s B-1B fleet and more than 3,700 total-force Airmen. (U.S. Air Force photo by Staff Sgt. Hannah Malone)