SCHRIEVER SPACE FORCE BASE, Colo. –
From left to right, Tony Calabrese, National Space Defense Center Deputy Director and Technical Director, U.S. Space Force Maj. Gen. Stephen G. Purdy, Jr., center, Military Deputy, Office of the Assistant Secretary of the Air Force for Space Acquisition and Integration, and USSF Col. Stephen Lyon, right, NSDC director and Space Delta 15 commander, pose for a photo during a visit to the NSDC at Schriever Space Force Base, Colo., April 10, 2025. Purdy and his team received updates on operations, intelligence, and defensive cyber operations, with a focus on closing kill chains. (U.S. Space Force photo by Dalton Prejeant)