Arlington County, Virginia Court, is the only other President buried at Arlington. Other frequently visited sites near the cemetery are the U.S. Marine Corps War Memorial, commonly known as the "Iwo Jima Memorial", the U.S. Air Force Memorial, the Women in Military Service for America Memorial, the Netherlands Carillon and the U.S. Army's Fort Myer. The Pentagon in Arlington is the headquarters of the United States Department of Defense. It was dedicated on January 15, 1943 and it is the world's largest office building. Although it is located in Arlington, the United States Postal Service requires that "Washington, D.C." be used as the
Organizational structure of the United States Department of Defense Organizational structure of the United States Department of Defense The United States Department of Defense (DoD) has a complex organizational structure. It includes the Army, Navy (the Marine Corps is a subset of the Navy), Air Force, the Unified combatant commands, U.S. elements of multinational commands (such as NATO and NORAD), as well as non-combat agencies such as the Defense Intelligence Agency and the National Security Agency. The DoD's annual budget was roughly US$496.1 billion in 2015. This figure is the base amount and does not include the $64.3 billion spent on "War/Non-War Supplementals". Including those items brings the total