Dr. Kathleen Hicks, the Deputy Secretary of Defense receives a mission briefing from U.S. Space Force Lt Col. Albert Harris, Commander of the 392d Combat Training Squadron at Schriever Space Force Base, Colorado, Dec. 13, 2021. The 392d Combat Training Squadron provides space combat training through live, virtual, and constructive environments to prepare warfighters to win. (U.S. Space Force photo by Judi Tomich)