A fire fighter from the 51st Civil Engineer Squadron unravels a hose during a mass casualty exercise at Osan Air Base, Republic of Korea, Sept. 17, 2014. This realistic exercise helps provide police, fire and ambulance agencies the opportunity to participate in a mass casualty exercise for emergency response training and evaluations. (U.S. Air Force photo by Senior Airman Matthew Lancaster)
Airman 1st Class Matthew Lancaster
Taken on 17 September 2014
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