Ellsworth Air Force Base Honor Guard members present the U.S. Flag and flags representing the five military service branches during the Memorial Day Ceremony at the Black Hills National Cemetery in Sturgis, S.D., May 27, 2013. Formerly known as Decoration Day, Memorial Day was established to commemorate U.S. servicemembers who died while serving their country. (U.S. Air Force photo by Senior Airman Kate Maurer/Released)