Tactical air control party Airmen divided into teams of two and rucked 12 miles during their last day of the Lighting Challenge at Camp Butner, N.C., Oct. 21, 2021. The Lightning Challenge is an annual event that evaluates TACP specialists from across the globe through tests of agile combat employment, physical ability and marksmanship skill, to identify the most outstanding multi-capable Airmen in the world. (U.S. Air Force photo by Staff Sgt. Charlye Alonso)