A U.S. Army CH-47 Chinook helicopter takes off to practice helocast training with Soldiers assigned to the 7th Special Forces Group during Emerald Warrior 14 at Hurlburt Field, Fla., May 1, 2014. 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 Nicholas Byers/Released)