Gen. Mark A. Milley, chief of staff of the U.S. Army, salutes during the singing of the National Anthem at Twilight Tattoo on Joint Base Myer-Henderson Hall May 25, 2016. Milley presented Robert Irvine, founder of the Robert Irvine Foundation, and Kathy-Roth Douquet, chief executive officer and president of Blue Star Families, with the Army Outstanding Civilian Service Award during the special "Salute from the Chief" Twilight Tattoo.  Twilight Tattoo is an hour-long historical show performed by Soldiers of the 3d U.S. Infantry Regiment (The Old Guard) and The U.S. Army Band "Pershing's Own." 