Dec. 9, 2025 USSF Combat Forces Command leadership visits Buckley SFB The visit centered on observing frontline missile warning operations conducted by Guardians of Mission Delta 4.
Nov. 1, 2024 Two DELs transition to fully-integrated mission deltas U.S. Space Force and U.S. Space Operations Command have transitioned two additional Space Deltas to fully-integrated Mission Deltas under the Unified Mission Readiness concept, marked by ceremonies Oct. 30-31, 2024.