Getting relief supplies into Haiti was problematic, due to lack of adequate port and airfield capacity, following the 2010 earthquake. Here, a special operations Soldier interprets for an American volunteer physician in Haiti. Special operations forces will become increasingly important in the years ahead, according to U.S. Army Training and Doctrine Command's Concepts Development and Learning Directorate. (U.S. Air Force photo by 2nd Lt. Victoria Brayton/Released)