Example image of eyePlorer eyePlorer map for 'United States Department of Defense': National security United States armed forces Title 10 of the United States Code United States Code The Pentagon United States Air Force United States Department of the Army United States Department of the Navy Washington, D.C. DARPA Defense Intelligence Agency Missile Defense Agency National Geospatial-Intelligence Agency National Security Agency Pentagon Force Protection Agency National War College Joint Chiefs of Staff Harry S. Truman United States Department of War United States Army Air Forces Interservice rivalry World War II James Forrestal National Security Act of 1947 United States Senate United States Army United States Navy United States Coast Guard United States Department of the Treasury Iraq War United States Department of Energy Civilian control of the military United States Marine Corps United States Department of Homeland Security United States Department of Transportation Arlington County, Virginia Potomac River Virginia National Capital Region (United States) President of the United States Goldwater–Nichols Act Unified Combatant Command Chairman of the Joint Chiefs of Staff Counterintelligence Field Activity Defense Criminal Investigative Service Defense Policy Board Advisory Committee Defense Prisoner of War/Missing Personnel Office Defense Security Cooperation Agency Defense Technical Information Center Fiscal year