1st Lt. Matthew Rother, 5th Air Support Operations Squadron tactical air control party member, climbs down a rope at the obstacle course Aug. 19, 2014, during the Cascade Challenge at Joint Base Lewis-McChord, Wash. The obstacle course was the second event in the three-day Cascade Challenge that included medical evacuation, first aid, self-aid buddy care, navigation, field artillery request, close air support procedures and call for fire training. (U.S. Air Force photo/Airman 1st Class Keoni Chavarria)