U.S. Air Force Airmen who transfer into the U.S. Space Force will continue to wear the Operational Camouflage Pattern utility uniform currently worn by USAF and U.S. Army personnel, but with distinct blue thread and a colored U.S. flag on the left arm. The USSF is the sixth branch of the U.S. Armed Forces and is part of the Department of the Air Force. (Courtesy photo)