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Russ Foos, Air Force Operational Test and Evaluation Center training chief, receives a coin of excellence from Air Force Chief of Staff Gen. CQ Brown, Jr., during CSAF’s visit to the center at Kirtland Air Force Base, N.M., Aug. 12, 2021. Brown visited the course where both Air and Space Force students are taught how to plan, execute and report operational testing throughout the acquisition of combat capability. (U.S. Air Force photo by Andrew Jogi)