Lt. Col. Joseph C. Winchester, the commander of the 910th Maintenance Group, expresses his confidence in the new 910th Maintenance Squadron Commander, Maj. Russell R. Whitlock, Oct. 2, 2021, at Youngstown Air Reserve Station, Ohio. Whitlock assumed command of the 910th MXS, replacing the previous commander, Lt. Col. George F. Lenahan, who served in the position for nearly two years. (U.S. Air Force photo/Tech. Sgt. Jeffrey Grossi)