Emerald Exercise A soldier walks toward a UH-60 Black Hawk helicopter for extraction during Emerald Warrior 17 at Hurlburt Field, Fla., March 6, 2017. The U.S. Special Operations Command exercise focuses on joint special operations forces as they train to respond to various threats across the spectrum of conflict. Air Force photo by Staff Sgt. Corey Hook SHARE: Download: Full Size (1.88 MB) Credit: Staff Sgt. Corey Hook VIRIN: 170306-F-ZU607-0842C.JPG Photo Gallery