Honorable Kristyn Jones, performing the duties of Under Secretary of the Air Force, and other senior leaders, tour an equipment room at the A-04 launch facility near Pine Bluffs, Wyo., Feb. 20, 2024. Jones visited F.E. Warren Air Force Base, Wyo., to learn about the ICBM modernization process from Minuteman III to Sentinel. (U.S. Air Force photo by Senior Airman Sarah Post)