Civil Engineers Repair Runway
Personnel from the 51st Civil Engineer Squadron watch over a simulated crater off the runway during exercise Beverly Herd 17-3 at Osan Air Base, Republic of Korea, September 20, 2017. During a real world attack, CE would have approximately four hours to remove the damaged area, fill the hole and cover it to allow aircraft to resume normal operations. (U.S. Air Force photo by Staff Sgt. Tinese Jackson)

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Photo by: Staff Sgt. Tinese Jackson |  VIRIN: 170920-F-XR532-078.JPG