Guardians observe official remarks during the Space Delta 12 change of command ceremony at Schriever Space Force Base, Colorado, July 31, 2026. Col. Sacha N. Tomlinson relinquished command to Col. Anna Gunn-Golkin as Maj. Gen. James E. Smith, commander of Space Training and Readiness Command, presided. Tomlinson will next serve as the director of exercises and readiness at U.S. Space Forces Pacific, Joint Base Pearl Harbor-Hickam, Hawaii. (U.S. Space Force photo by Isaac Blancas)