U.S. Air Force Chief Master Sgt. Christopher Gragg is promoted to Chief, February 4, 2022, during a ceremony at the I.G. Brown Training and Education Center on McGhee Tyson Air National Guard Base in East Tennessee. Chief Gragg leads the TEC University division. (U.S. Air National Guard photo by Master Sgt. Mike R. Smith)
Master Sgt. Mike R. Smith
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