U.S. Air Force Airman 1st Class Brandon Parker, 5th Air Support Operations Group, makes his way out from under the barbed wire during a portion of the 2005 1st Air Support Operations Group Cascade Challenge, Feb. 8, 2005. The obstacle course was one of several events that tested both mind and body at McChord Air Force Base, Wash. and Fort Lewis, Wash., Feb. 7-10, 2005. U.S. Air Force photo by Kristin Royalty