Several chief master sergeants 28th Bomb Wing leadership stand in front of the “chiefs’ bus” at Ellsworth Air Force Base, S.D., Dec. 4, 2018. Ellsworth AFB members traveled on the chiefs’ bus to the 28th Security Forces Squadron to congratulate Senior Master Sgt. Jesse Frank, the 28th SFS operations superintendent, on earning the title of chief master sergeant. (U.S. Air Force photo by Airman 1st Class Thomas Karol)