U.S. Army 2nd Lt. Devin Cook, 21st Theater Sustainment Command, applies a tourniquet to a simulated casualty during the chemical, biological, radiological, nuclear lane during the U.S. Army Europe Best Warrior Competition at the 7th Army Training Command’s Grafenwoehr Training Area, Germany, May 7, 2019. The week-long event tests competitors’ endurance, fortitude, resourcefulness, and problem solving skills to determine who will move on to the Army level competition later this year.