A U.S. Airman with the 20th Special Operations Squadron signals to an Army UH-60 Black Hawk helicopter for a medical evacuation after a simulated urban environment raid at the Camp McCain Training Center near Grenada, Miss., May 1, 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. (U.S. Air Force photo by Senior Airman Jodi Martinez/Released)