Members of the Military District of Washington Joint Service Honor Guard present the colors before the beginning of the Ringling Brothers and Barnum & Bailey Circus March 24 at the Verizon Center, Washington, D.C. The March 24 show was a salute to military heroes, with many wounded warriors from Walter Reed Army Medical Center and their families in attendance. (U.S. Air Force photos by Senior Airman Torey Griffith)