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
Department of the Army Civilian Police "Department of Defense Police" is a catch-all phrase that refers to any civilian engaged in police duties for the Department of Defense and its component branches of the US Armed Forces. There is no such unified agency that goes under the title "Department of Defense Police". A Fort Irwin Department of the Army Civilian Police Officer is assigned the federal occupational series code "0083", the code reserved for police and federal protective officers in the U.S. Government civil service. This occupational series code applies regardless of what specific agency of the officer works for. Individual installations conduct the hiring process