In order to maintain speed and efficiency, soldiers from the 638th Aviation Support Battalion conduct casualty evacuation drills as they are timed by their grader, Sept. 21, 2013, at Camp Fowler Ind. “It’s stuff I had already known, but can get lost in my civilian life,” said Spc. Charles Roberson, left, a combat medic with the ASB and a full-time college student. (U.S. Army National Guard photo by 1st Lt. Tyler Mitchell/Released)