Thunderbolts take on Viking Challenge
Senior Master Sgt. Leroy Ridgel, 56th Logistics Readiness Squadron acting chief, runs with the American flag April 4 during the Viking Challenge at Luke Air Force Base. Part of Team America, Ridgel, along with nine others of his team, completed the 10-hour long relay marathon to raise money for the Enlisted Scholarship Fund. Fourteen teams participated in the annual event. (U.S. Air Force photo/Senior Airman Marcy Copeland)