Gen. Tim Ray, Air Force Global Strike Command commander, receives information on equipment being used to maintain the B-1B Lancer fleet on Ellsworth Air Force Base, S.D., during a tour on May 26, 2021. Engineers at the 28th Maintenance Squadron have recently developed a more efficient part for the B-1 Lancer engine. (U.S. Air Force photo by Airman 1st Class Jonah Fronk)