Department of Defense police for the Department of Defense and its component branches of the US Armed Forces. There is a DoD police agency based at the Pentagon named the United States Pentagon Police, which is part of the Pentagon Force Protection Agency. Formerly the Defense Protective Service (DPS), the Pentagon Police have exclusive jurisdiction within the Pentagon Reservation and have concurrent jurisdiction with other police agencies (state, county, and local) in an area of approximately around the complex. Through a memorandum of understanding (MOU) with Arlington County, U.S. Pentagon Police Officers also possess authority, to enforce laws while on duty in Arlington County,
Arlington House, The Robert E. Lee Memorial of Alexandria County to Arlington County to end ongoing confusion between Alexandria County and the independent city of Alexandria. The name Arlington was chosen to reflect the presence of the Arlington estate. On March 4, 1925, the 68th United States Congress enacted Public Resolution 74, which authorized the restoration of the Lee Mansion in the Arlington National Cemetery, Virginia. The War Department then began to restore Arlington House, and the Department of the Army continues to manage over half of the original plantation's 1,100 acres, as Arlington National Cemetery. However, for several years after Congress enacted the authorizing legislation, the