A B-1B Lancer lands at Ellsworth Air Force Base, S.D., Oct. 30, 2018. The B-1 is the backbone of the United States' long-range bomber force and carries the largest conventional payload of guided and unguided weapons in the the Air Force's inventory. B-1s assigned to Ellsworth AFB provide support to allies across the globe.(U.S. Air Force photo by Airman 1st Class Thomas Karol)