U.S. Soldiers with the 20th Special Forces Group, Alabama Army National Guard walk on a flight line in Gulfport, Miss., May 5, 2014, during Emerald Warrior 14. Emerald Warrior is a U.S. Special Operations Command-sponsored two-week joint/combined tactical exercise designed to provide realistic military training in an urban setting. (DoD photo by Senior Airman Jodi Martinez, U.S. Air Force/Released)