Deputy Defense Secretary Ash Carter and Marine Corps Gen. Joseph F. Dunford Jr., commander of the International Security Assistance Force and U.S. Forces Afghanistan, join with U.S. and Afghan security forces in a weekly memorial service to honor fallen troops in Kabul, Afghanistan, May 12, 2013. The names of both U.S. and Afghan forces were read aloud. (DOD photo by Glenn Fawcett/Released)