U.S. Air Force Maj. Gen. Shawn Bratton, Space Training and Readiness Command commander, delivers opening remarks during Delta 11’s change of command ceremony at Schriever Space Force Base, Colorado, July 7, 2023. Delta 11 is responsible for delivering realistic, threat-informed test and training resources to U.S. Space Force, joint, and coalition space operators via live, virtual, and constructive threat replication, leveraging the National Space Test and Training Complex across multiple space warfighting disciplines. (U.S. Space Force photo by Ethan Johnson)