Active Shooter Training Exercise June 2017
Air Force Technical Sgt. Derek D. White, 175th Wing emergency manager, answers a phone call June 22, 2017, in the emergency operations center at Warfield Air National Guard Base, Middle River, Md. White was contacting units to get full accountability of base Airmen during an active shooter training exercise. (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-UY654-1024.JPG