The United States National Cemetery System is a system of 164 military cemeteries in the United States and its territories. The authority to create military burial places came during the American Civil War, in an act passed by the U.S. Congress on July 17, 1862.[1] By the end of 1862, 12 national cemeteries had been established.[2] Two of the nation's most iconic military cemeteries, Arlington National Cemetery which is under the jurisdiction of the Department of the Army, and Gettysburg National Cemetery, under the jurisdiction of the National Park Service, were established in 1864 and 1863, respectively.