170824-N-WT427-126 POHANG, Republic of Korea (Aug. 24, 2017) Sailors assigned to Naval Mobile Construction Battalion (NMCB) 3 and Republic of Korea (ROK) sailors assigned to the ROK 66th Naval Air Wing Mobile Construction Battalion fill in air field damage during a combined airfield damage repair exercise. (U.S. Navy photo by Lt. Krista Morris/Released)