VANDENBERG SPACE FORCE BASE, Calif. -- U.S. Space Force Maj. Gen. Douglas A. Schiess, U.S. Space Forces - Space commander and the Combined Joint Force Space Component Commander, presents a retirement certificate to U.S. Space Force Col. Mark Shoemaker, Space Launch Delta 30 commander, during Shoemaker’s retirement ceremony at Vandenberg Space Force Base, Calif., July 3, 2025. Shoemaker served 28 years, initially in the U.S. Air Force, and later transitioned to the U.S. Space Force. Shoemaker also earned the legion of merit during the ceremony.