Airman 1st Class Parker Davis, an explosive ordinance disposal apprentice assigned to the 28th Civil Engineer Squadron, performs a hose raise during the Firefighter Challenge at Ellsworth Air Force Base, S.D., Oct. 7, 2016. The hose raise involved lifting a rolled section of hose up to the mezzanine using a rope to simulate hauling tools and equipment up to a roof. (U.S. Air Force photo by Airman 1st Class Donald C. Knechtel)