Whiteman Airmen strive to be iron
U.S. Air Force Staff Sgt. Landen Sifferlin, 509th Maintenance Squadron counts while Tech. Sgt. Christopher Iseri, 509th MXS, performs sit-ups during the Iron Airman Challenge at Whiteman Air Force Base, Mo., Oct. 10, 2014. The Iron Airman challenge consists of four events that must be completed within 30 minutes: push-ups, sit-ups, a two-mile run and pull-ups. (U.S. Air Force photo by Airman 1st Class Joel Pfiester/Released)