Active Shooter Training Exercise June 2017
Service members work to take full accountability of 175th Wing Airmen June 22, 2017, in the emergency operations center at Warfield Air National Guard Base, Middle River, Md. The members were participating in Warfield’s first active shooter training exercise this year. (U.S. Air National Guard photo by Airman Sarah M. McClanahan)

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Photo by: Air Force Airman Sarah M. McClanahan |  VIRIN: 170622-Z-UY654-1001.JPG