Black Flag 2015
Staff Sgt. Jonathan Moroz, 779th Aerospace Medical Squadron NCO in-charge of bioenvironmental training, scans a mock chemical lab for chemical agents in the Memorial Tunnel at the Center for National Response in Gallagher, WV., March 17, 2015. This training is part of the annual Black Flag exercise for first responders. Moroz is stationed at Joint Base Andrews, Md. (U.S. Air Force photo/Airman 1st Class Joshua R. M. Dewberry)

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