Staff Sgt. Andrew Trelly, 51st Civil Engineer Squadron explosive ordnance disposal team leader, helps Ty Mathis, 7, operate an EOD robot during Liberty Fest at Osan Air Base, Republic of Korea, July 4, 2014. Several units hosted demonstrations throughout the night which ended with a fireworks display. (U.S. Air Force photo/Airman 1st Class Ashley J. Thum)
Airman 1st Class Ashley Thum
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