U.S. Air Force special tactics Airmen assigned to the 24th Special Operations Wing conduct a freefall jump from a U.S. Army CH-47 Chinook assigned to 5th Battalion, 159th Aviation Regiment, Fort Eustis, Va., during Exercise Emerald Warrior 16 over Eglin Range, Fla., May 7, 2016. Emerald Warrior is a U.S. Special Operation Command sponsored mission rehearsal exercise during which joint special operations forces train to respond to real and emerging worldwide threats. (U.S. Air Force still frame from video by Tech. Sgt. Gregory Brook)