Lt. Gen. B. Chance Saltzman, Deputy Chief of Space Operations for Operations, Cyber and Nuclear, joined by various members of Space Delta 4 leadership, pose for a photo in the Mission Control Station lobby at Buckley Space Force Base, Colo., Dec. 16, 2021. DEL 4 Guardians and Airmen protect U.S. and allied interests in space by providing critical strategic and theater missile warning. (U.S. Space Force photo by Airman 1st Class Shaun Combs)