A U.S. Air Force Tactical Air Control Party (TACP) Airman assigned to the 7th Air Support Operations Squadron, Fort Bliss, Texas, runs while carrying weighted bags as part of a Tier II Operator Fitness Test during the 2019 Lightning Challenge at Joint Base Lewis-McChord, Wash., July 29, 2019. The 2019 Lightning Challenge saw 20 two-man teams compete in various challenges in order to identify the highest performers in the TACP career field. (U.S. Air Force by Staff Sgt. Zade Vadnais)