Members of the 507th Air Refueling Wing run the Tinker Trails during the Shell 77 Memorial Run here July 13, 2013. The run brought KC-135 tanker units together around the world to run in support of the 93rd Air Refueling Squadron crew that lost their lives in a crash on May 3. (U.S. Air Force Photo/Lt. Col. Kimberly Howerton)