Gen. Arnold W. Bunch, Jr., Air Force Materiel Command commander, presides over the Air Force Test Center Change of Command ceremony at Edwards Air Force Base, Calif., July 15, 2021. During the ceremony Maj. Gen. Evan C. Dertien took command of AFTC and now directs a test enterprise of more than 18,000 military, civilian and contractor personnel across Arnold AFB, Tenn., Edwards AFB, and Eglin AFB, Fla.

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Keywords: air, base, california, center, command, edwards, force, materiel, test