Editing Ellsworth Air Force Base (section)

===B-1B Lancer, 1987–present===
In 1986, the base and the 28 BMW made extensive preparations to phase out the B-52 fleet and become the second home for the advanced [[B-1B Lancer]] bomber. Contractors completed new unaccompanied enlisted dormitories in March, a new security police squadron headquarters in October, and gave Ellsworth's {{convert|13497|ft|m|adj=on}} runway a much-needed facelift. In addition, they completed new aircraft maintenance facilities for the complex new aircraft. The last of the 28 BMW's B-52Hs left in early 1986 and in January 1987, the wing received the first of 35 B-1B bombers.

The 12th Air Division moved to Ellsworth on 15 July 1988. This organization was responsible for training B-1B, B-52, and [[KC-135 Stratotanker]] aircrews at Ellsworth and other SAC bases in the region. Headquarters SAC activated a third wing, the 99th Strategic Weapons Wing, at Ellsworth on 10 August 1989. This wing assumed primary responsibility for B-1B advanced aircrew training.