SCHRIEVER AIR FORCE BASE, Colo. –
SCHRIEVER AIR FORCE BASE, Colo. -- Air Force Maj. Gen. William Holt II, U.S. Space Command director of operations and training (right), escorts Marine Gen. Gary Thomas, assistant commandant of the Marine Corps, to a space threat briefing at Schriever Air Force Base, Colorado, Dec. 11, 2020. Respective organization leaders also briefed the National Space Defense Center and 527th Space Aggressors Squadron missions during the general’s visit to the installation. (U.S. Air Force Photo/Dennis Rogers)