Osan engineers, 554th Red Horse Squadron team up for training
A U.S. Airmen assigned to the 51st Civil Engineer Squadron watches concrete pour into a repair site during rapid airfield damage recovery (RADR) training at Osan Air Base, Republic of Korea, April 19, 2019. The 51st CES conducted a realistic RADR training exercise with the assistance of the explosive ordnance disposal flight detonating explosives to create craters on a non-active section of the runway. (U.S. Air Force photo by Staff Sgt. Ramon A. Adelan)

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Photo by: Staff Sgt. Ramon A. Adelan |  VIRIN: 190419-F-HK496-1249.JPG