Afghan National Army soldier Amrullah, noncommissioned officer with the 203rd Corps, takes a written examination on the last day of a Senior Medical Leader course on Forward Operating Base Thunder, Paktiya province, Afghanistan, Nov. 21, 2013. Success in the course is dependent on the senior medical leader's ability to train, plan and execute medical operations. (U.S. Army photo by Spc. Ryan D. Green/Released)