LOS ANGELES AIR FORCE BASE, Calif. --   Participants of an unveiling ceremony pull back the curtains to reveal an Enlisted Heritage wall at the South Bay Bar and Grill on Los Angeles Air Force Base, Calif., June 23, 2021. The wall is titled "CMSgt Lisa Arnold Enlisted Heritage Wall" after the current Space and Missile Systems Center's Command Chief Master Sgt. Lisa A. Arnold who will be the last U.S. Air Force command chief for Los Angeles AFB before being replaced by a U.S. Space Force Senior Enlisted Leader. (U.S. Space Force photo by Staff Sgt. Elijah Jackson)