U.S. Air Force tactical air control party specialists from the 1st Air Support Operations Group begin the timed run portion of a physical training event during the Chaos Challenge 2021 at Joint Base Elmendorf-Richardson, Alaska, July 13, 2021. The Chaos Challenge 2021 was a multi-day series of mental and physical contests sponsored by the 1st Air Support Operations Group with participants from the 3rd, 5th, 25th, and 604th Air Support Operations Squadrons and a guest team from the 673d Security Forces Squadron. The winner of the competition will go on to compete in Lightning Challenge 2021 to determine the best two-man TACP team in the Air Force.