Firefighters assigned to the 124th Fighter Wing Civil Engineer Squadron practice breaching doors and walls in the abandoned 124th Medical Group trailers Dec. 3, 2017 at Gowen Field, Boise, Idaho. Training like this allows the firefighters, both traditional and full-time, the opportunity to hone their skills in preparation for real world situations. (U.S. Air National Guard photos by Master Sgt. Joshua Allmaras)

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Photo by: Master Sgt. Joshua Allmaras |  VIRIN: 171203-Z-IM874-0130.JPG