Air Force Staff Sgt. August O'Niell and his service dog, Kai, prepare to enter the stadium for the opening ceremony of the Invictus Games 2016 at ESPN Wide World of Sports in Orlando, Fla., May 8, 2016. O'Niell delivered the Invictus Games flag after hoisting down from a HH-60G Pave Hawk. Air Force photo by Tech. Sgt. Joshua L. DeMotts