Tech. Sgt. KC Ratekin, 51st Comptroller Squadron financial analysis supervisor, contacts his unit control center about a piece of simulated unexploded ordnance that was discovered outside of a building during a base-wide training event at Osan Air Base, Republic of Korea, Aug. 18, 2022. UXOs are treated with extreme caution, requiring a safe perimeter to be established and explosive ordnance disposal teams to neutralize them.