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
Construction of the Virginia approaches to Arlington Memorial Bridge early 1931, Arlington Memorial Bridge was nearing completion, but citizens of Arlington County had no way of using the bridge as no approaches had been approved by the state or county in the preceding five years. Arlington County itself took no action on any bridge approaches until January 1931, when it began tentatively surveying potential routes. In February 1931, citizens of Clarendon, Ft. Myer Heights, and Lyon Village — unincorporated communities north and northwest of Arlington National Cemetery — met with the Arlington County Board of Supervisors and a Commonwealth's Attorney from the state of Virginia to identify a route