Airman 1st Class Mary-Charlotte McKean, a finance representative with the 90th Comptroller Squadron, discusses the culture wall with Chief Master Sgt. Charles Hoffman, Air Force Global Strike Commandcommand chief , at the Welcome Center on F.E. Warren Air Force Base, Wyo. Jan. 4, 2020. Chief Hoffman got a full tour of the welcome center, the first stop for many new Airmen who arrive at F.E. Warren Air Force Base. (U.S. Air Force photo by A1C Darius R. Frazier.)