Forty-one U.S. soldiers gather at the starting line for their final test before earning the Expert Field Medical Badge on Grafenwoehr Army Base, Germany, Sept. 3, 2015. Candidates had to complete a 12-mile ruck march in less than three hours while accounting for all their gear. A total of 192 candidates from U.S. Army Europe, U.S. Army Africa, Kosovo forces and NATO nations participated in the test, but only 38 participants finished in time. U.S. Army photo by Capt. Jeku Arce