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A paratrooper with the 6th Brigade Engineer Battalion, 4th Brigade Combat Team (Airborne), 25th Infantry Division, operates a Broco exothermic torch to cut through steel while performing breaching techniques and tactics learned in an Urban Mobility Breaching Course during a field training exercise on a range at Joint Base Elmendorf-Richardson on Wednesday, Dec. 14, 2016. (Bill Roth / Alaska Dispatch News)