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Airmen from the U.S. and Republic of Korea Air Forces cinch tie-down straps to secure a load of crates of LUU-2 aircraft illumination flares at the Alpha Site munitions storage area outside Osan Air Base, ROK, May 2, 2014. Osan worked with the ROKAF to stage 936 of the flares in Sacheon to support the ongoing search and rescue efforts for survivors of the Sewol ferry sinking. (U.S. Air Force photo/Airman 1st Class Ashley J. Thum)