U.S. Air Force Master Sgt. Kile Stewart, a Kabul Air Base fire emergency services adviser, and Senior Airman Paul Hartmire, a firefighter adviser, both with the 439th Air Expeditionary Advisory Squadron, adjust an oxygen mask for an Afghan National Army Air Force firefighter during a live fire exercise at the Air University Fire Academy at Kabul International Airport, Afghanistan, Jan. 15, 2012. The firefighters participated in a three day course that included training on controlled fires, protective equipment and training on safety procedures used in a controlled environment under the supervision of U.S. Air Force advisers.