Staff Sgt. Robert Dickson, a crew chief assigned to the 28th Civil Engineer Squadron Firefighter Flight, brings tools to Ellsworth firefighters assisting with the fire in Custer State Park, S.D., Dec. 13, 2017. The park wildfire grew rapidly overnight, pushing beyond the park's borders and threatening nearby communities. (U.S. Air Force photo by Airman 1st Class Donald C. Knechtel)