An airman provides security during fast-rope training from an Army UH-60 Black Hawk helicopter as part of Emerald Warrior 16 at Hurlburt Field, Fla., May 4, 2016. The airmen are special tactics squadron assigned to 24th Special Operations Wing. The training prepares special operations forces to respond to real and emerging worldwide threats. Air Force photo by Senior Airman Trevor T. McBride