Organizational structure of the United States Department of Defense of the Treasury. According to the U.S. Code, the Coast Guard is at all times considered one of the five armed services of the United States. During times of declared war (or by Congressional direction), the Coast Guard operates as a part of the Navy; this has not happened since World War II, but members have served in undeclared wars and conflicts since then while the service remained in its peacetime department. The Pentagon, in Arlington County, Virginia, across the Potomac River from Washington, D.C., is the Department's headquarters. The Department is protected by the Pentagon Force Protection Agency, which
Arlington Village Historic District (Arlington, Virginia) Arlington Village Historic District (Arlington, Virginia) The Arlington Village Historic District is a national historic district located at Arlington County, Virginia. It contains 657 contributing buildings (including 656 apartment units) in a residential neighborhood in South Arlington. The area was constructed in 1939, and is a planned garden apartment community that incorporates recreational areas, open spaces, a swimming pool and courtyards within five superblocks. It also includes a shopping center consisting of six stores. The garden apartments are presented as two-story, brick rowhouses with Colonial Revival detailing. There are three building types distinguished by the roof form: flat, gambrel, or