Joint service drill competition held at Lincoln Memorial
A panel of judges from the five U.S. military branches views a performance by the U.S. Air Force Honor Guard Drill Team during the 3rd Annual Joint Service Drill Team Exhibition April 10, 2010, at the Lincoln Memorial in Washington, D.C. The event featured drill team performances from all five military branches. (U.S. Air Force photo/Staff Sgt. Dan DeCook)