Service members conquer extreme Alaska at 'Cool School'
U.S Air Force Staff Sgt. Vance Streeter, Joint Base Elmendorf-Richardson, Alaska, 210th Rescue Squadron aerial gunner, and Senior Airman Matthew Ralston, Det. 1, 66th Training Squadron Survival Evasion Resistance Escape specialist, remove tree bark during arctic survival training Feb. 21, 2013, Eielson Air Force Base, Alaska. Ralston taught Streeter to create a fire from deciduous trees in the absense of pinewood, which is the preferred source for firebuilding. (U.S. Air Force Photo/Airman 1st Class Peter Reft)