Office of the Secretary of Defense Pete HegsethSecretary of Defense1000 Defense Pentagon, Washington, DC 20301-1000 Steve Feinberg Deputy Secretary of Defense1010 Defense Pentagon, Washington, DC 20301-1010 Under Secretary of Defense for Acquisition and Sustainment 3010 Defense Pentagon, Washington, DC 20301-3010 Under Secretary of Defense Comptroller/Chief Financial Officer 1100 Defense Pentagon, Washington, DC 20301-1100 Under Secretary of Defense for Policy 2000 Defense Pentagon, Washington, DC 20301-2000 Under Secretary of Defense for Personnel and Readiness 4000 Defense Pentagon, Washington, DC 20301-4000
The Chairman and Vice Chairman of the Joint Chiefs of Staff General Dan CaineChairman of the Joint Chiefs of Staff 9999 Joint Staff Pentagon, Washington, DC 20318-9999 Admiral Christopher W. Grady Vice Chairman of the Joint Chiefs of Staff 9999 Joint Staff Pentagon, Washington, DC 20318-9999
Secretaries of the Armed Forces Daniel Driscoll Secretary of the Army 101 Army Pentagon, Washington, DC 20310-0101 John Phelan Secretary of the Navy 1000 Navy Pentagon, Washington, DC 20350-1000 Troy E. Meink Secretary of the Air Force 1670 Air Force Pentagon, Washington, DC 20330-1670
The Chiefs of Staff General Randy A. George Army Chief of Staff 200 Army Pentagon, Washington, DC 20310-0200 Chief of Naval Operations 2000 Navy Pentagon, Washington, DC 20350-2000 General Steven S. Nordhaus Chief, National Guard Bureau 1636 Defense Pentagon, STE 1E169, Washington, DC 20301-0001 General David W. Allvin Air Force Chief of Staff 1670 Air Force Pentagon, Washington, DC 20330-1670 General Eric M. Smith Commandant of the Marine Corps Headquarters, U.S. Marine Corps, 3000 Marine Corps Pentagon, Washington, DC 20350-3000 General B. Chance Saltzman Chief of Space Operations 2020 U.S. Space Force Pentagon, STE 4E858, Washington, DC 20330-2000