California Army National Guard Spc. Saul Yanez from the Headquarters and Headquarters Company, 340th Brigade Support Battalion, puts on his earplugs as a UH-60 Black Hawk helicopter approaches to take him and other competitors from Camp San Luis Obispo to Camp Roberts for the Unknown Distance Ruck March during the 2014 Best Warrior Competition on Oct. 21. The Unknown Distance Ruck March tests the competitors' ability to accurately navigate across harsh terrain and complete a series of weapons familiarity tests while carrying a full ruck sack. (U.S. Army National Guard photo/Sgt. Ian M. Kummer/Released)