A Spartan Race competitor climbs an obstacle during

A Spartan Race competitor climbs an obstacle during a Spartan Race at the Best Ranger Competition 2017 in Fort Mitchell, Ala., April 8, 2017. The 34th annual David E. Grange Jr. Best Ranger Competition 2017 is a three-day event consisting of challenges to test competitor's physical, mental, and technical capabilities. (U.S. Army photo by Spc. Darius Davis)