United States Department of Defense United States Department of Defense The Department of Defense (DoD, USDOD, or DOD) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government concerned directly with national security and the United States Armed Forces. The department is the largest employer in the world, with nearly 1.3 million active duty servicemen and women as of 2016. Adding to its employees are over 826,000 National Guardsmen and Reservists from the four services, and over 742,000 civilians bringing the total to over 2.8 million employees. Headquartered at the Pentagon in Arlington, Virginia,
Construction of the Virginia approaches to Arlington Memorial Bridge or disapprove any major construction project on or within view of federal property but also to approve road construction in the region which used federal funds. The agency had long stated its intention to support the urbanization of Arlington County (in part to provide for more and better housing for the federal workforce, and to improve the capital's economy). The Virginia State Highway Commission was considering a number of routes, some of which skirted rather than passed through Arlington County. However, the NCPC and the CFA both said in July 1927 that they would approve any route chosen by the