Northern Challenge 16
U.S. Air Force Staff Sgt. Cole Carroll, front, and Senior Airman Vincent Miller, 52nd Civil Engineer Squadron explosive ordnance disposal craftsmen, Spangdahlem Air Base, Germany, prepare a device designed to defeat an improvised explosive device during the Northern Challenge 16 exercise at Icelandic Coast Guard Keflavik Facility, Iceland, Sept. 19, 2016. The exercise focused on disabling IEDs in support of counter-terrorism tactics to prepare Partnership for Peace, NATO, and Nordic nations for international deployments and defense against terrorism. (U.S. Air Force photo by Staff Sgt. Jonathan Snyder)

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Photo by: Staff Sgt. Jonathan Snyder |  VIRIN: 160919-F-RH756-865.JPG