A Marine Corps color guard presents the colors during the playing of the Star Spangled Banner Aug. 1, 2015 during the CH-46 Last Flight Retirement Ceremony at the Smithsonian Institution Nation Air and Space Museum Steven F. Udvar-Hazy Center in Chantilly, Virginia. The CH-46's main mission has been to provide combat support, however, the aircraft also flew resupply missions, medical evacuations and tactical recovery of aircraft and personnel. (U.S. Marine Corps photo by Cpl. Cuong Le)