U.S. Air Force Senior Airman Alex Collage, (standing) teaches Wounded Warrior athletes the fundamentals of competition shooting Aug. 3, 2014 at Fort Carson, Colo. The Wounded Warrior athletes are conducting their final group practices prior to the up coming Invictus Games in London Sept. 10-14 and the Warrior Games Sept. 28 through Oct. 4, 2014. (U.S. Air Force photo\ Staff Sgt.Tim Chacon)