U.S. Air Force Maj. James Collins, an emergency room doctor assigned to the 1st Special Operations Support Squadron, treats a simulated critical patient in the surgical tent during Emerald Warrior 2011 at Hurlburt Field, Fla., March 3, 2011. Emerald Warrior is an annual two-week joint/combined tactical exercise sponsored by U.S. Special Operations Command designed to leverage lessons learned from operations Iraqi and Enduring Freedom to provide trained and ready forces to combatant commanders. (U.S. Air Force photo by Staff Sgt. Andy M. Kin/Released)