Air Force Gen. Paul J. Selva, left, vice chairman of the Joint Chiefs of Staff; Army Maj. Gen. Bradley A. Becker, commanding general of Joint Force Headquarters National Capitol Region and the U.S. Army Military District of Washington; and Canadian Governor General David Johnston render honors during a wreath-laying ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery in Arlington, Va., Feb. 10, 2016. DoD photo by Army Staff Sgt. Sean K. Harp