Active-shooter exercise tests first responders
Airmen from the 100th Civil Engineer Squadron Fire Department and 48th Medical Group respond to a simulated victim during an active shooter exercise as 100th Air Refueling Wing inspection team members evaluate the situation Aug. 25, 2015, on RAF Mildenhall, England. As part of an emergency lockdown exercise, an armed assailant was on base testing service members’ reactions to the scenario. (U.S. Air Force photo by Karen Abeyasekere/Released)

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Photo by: Karen AbeyasekereReleased |  VIRIN: 150825-F-EJ686-090.JPG