U.S. Army Spc. Francisco Gutierrez, a Chemical, Biological, Radiological, and Nuclear specialist assigned to the 688th Rapid Port Opening Element, 832nd Transportation Battalion, 597th Trans. Brigade, puts his rucksack on before a 12-mile ruck march at Joint Base Langley-Eustis, Virginia, Sept. 28, 2020. The 12-mile ruck march was one of six events that cumulate the best warrior competition. (U.S. Army photo by Sgt. Hyeongmin Lee)