This is a list of Agencies under the '' United States Department of Defense (DoD)'' which was formerly and shortly known as the National Military Establishment. Its main responsibilities are to control the Armed Forces of the United States. The Department was established in 1947 and is currently divided into three major Departments—the Department of the Army,

Navy A navy, naval force, or maritime force is the branch of a nation's armed forces principally designated for naval warfare, naval and amphibious warfare; namely, lake-borne, riverine, littoral zone, littoral, or ocean-borne combat operations and ...

and

Air Force An air force – in the broadest sense – is the national military branch that primarily conducts aerial warfare. More specifically, it is the branch of a nation's armed services that is responsible for aerial warfare as distinct from an a ...

—and has a military staff of 1,418,542 (553,044

US Army The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, cla ...

; 329,304

US Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of ...

; 202,786

US Marine Corps The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combi ...

; 333,408

US Air Force The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal ...

)."Defense Department Military Personnel"
, retrieved 16/02/2011. The DoD is headed by the Secretary of Defense. Currently, the DoD is led by defense secretary

Lloyd Austin Lloyd James Austin III (born August 8, 1953) is a retired United States Army four-star general who, since his appointment on January 22, 2021, has served as the 28th United States secretary of defense. He is the first African American to serv ...

Department of Defense Agencies, Field Activities, and others

Defense Advanced Research Projects Agency The Defense Advanced Research Projects Agency (DARPA) is a research and development agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military. Originally known as the Adv ...

(DARPA) *

Defense Commissary Agency The Defense Commissary Agency (DeCA), headquartered at Fort Lee (Virginia), is an agency of the United States Department of Defense (DoD) that operates nearly 240 commissaries worldwide. American military commissaries sell groceries and household ...

(DeCA) *

Defense Contract Audit Agency The Defense Contract Audit Agency (DCAA) is an agency of the United States Department of Defense under the direction of the Under Secretary of Defense (Comptroller). It was established in 1965 to perform all contract audits for the Department of ...

(DCAA) *

Defense Contract Management Agency The Defense Contract Management Agency (DCMA) is an agency of the United States federal government reporting to the Under Secretary of Defense for Acquisition and Sustainment. It is responsible for administering contracts for the Department of ...

(DCMA) *

Defense Counterintelligence and Security Agency The Defense Counterintelligence and Security Agency (DCSA) is a federasecurityand defense agency of the United States Department of Defense (DoD) that reports to the Under Secretary of Defense for Intelligence.DCSA is the largest counterintellige ...

(DCSA) *

Defense Finance and Accounting Service The Defense Finance and Accounting Service (DFAS) is an agency of the United States Department of Defense (DOD), headquartered in Indianapolis, Indiana. DFAS was established in 1991 under the authority, direction, and control of the Under Secret ...

(DFAS) *

Defense Health Agency The Defense Health Agency (DHA) is a joint, integrated combat support agency that enables the U.S. Army, U.S. Navy, U.S. Air Force, and U.S. Space Force medical services to provide a medically ready force and ready medical force to Combatant Co ...

(DHA) *

Defense Human Resources Activity The Defense Human Resources Activity (DHRA) is a United States Department of Defense (DoD) Field Activity chartered to support the Under Secretary of Defense for Personnel and Readiness The under secretary of defense for personnel and readines ...

(DHRA) ield Activity*

Defense Information Systems Agency The Defense Information Systems Agency (DISA), known as the Defense Communications Agency (DCA) until 1991, is a United States Department of Defense (DoD) combat support agency composed of military, federal civilians, and contractors. DISA prov ...

(DISA) *

Defense Intelligence Agency The Defense Intelligence Agency (DIA) is an intelligence agency and combat support agency of the United States Department of Defense, specializing in defense and military intelligence. A component of the Department of Defense (DoD) and the I ...

(DIA) *

Defense Legal Services Agency The General Counsel of the Department of Defense is the chief legal officer of the Department of Defense (DoD), advising both the Secretary and Deputy Secretary on all legal matters and services, and providing legal advice to Office of the Secreta ...

(DLSA) *

Defense Logistics Agency The Defense Logistics Agency (DLA) is a combat support agency in the United States Department of Defense, United States Department of Defense (DoD), with more than 26,000 civilian and military personnel throughout the world. Located in 48 state ...

(DLA) *

Defense Media Activity The Defense Media Activity (DMA) is a United States Department of Defense (DoD) field activity. It provides a broad range of high-quality multimedia products and services to inform, educate, and entertain Department of Defense audiences around the ...

(DMA) ield Activity*

Defense POW/MIA Accounting Agency The Defense POW/MIA Accounting Agency (DPAA) is an agency within the U.S. Department of Defense whose mission is to recover American military personnel listed as prisoners of war (POW) or missing in action (MIA) from designated past conflicts, ...

(DPAA) *

Defense Security Cooperation Agency The Defense Security Cooperation Agency (DSCA), as part of the United States Department of Defense (DoD), provides financial and technical assistance, transfer of defense matériel, training and services to allies, and promotes military-to-milit ...

(DSCA) * Defense Technical Information Center (DTIC) ield Activity*

Defense Technology Security Administration The Assistant Secretary of Defense for Global Strategic Affairs, or ASD(GSA), is a position in the Office of the Secretary of Defense that develops policy for the Secretary on countering weapons of mass destruction, nuclear forces and missile defens ...

(DTSA) ield Activity*

Defense Threat Reduction Agency The Defense Threat Reduction Agency (DTRA) is a combat support agency within the United States Department of Defense (DoD) for countering weapons of mass destruction (WMD; chemical, biological, radiological, nuclear, and high explosives). Ac ...

(DTRA) *

Department of Defense Education Activity The Department of Defense Education Activity (DoDEA) is a federal school system headquartered in Alexandria, Virginia, responsible for planning, directing, coordinating, and managing prekindergarten through 12th grade educational programs on behal ...

(DOD EA) ield Activity* Department of Defense Test Resource Management Center (DOD TRMC) ield Activity*

Missile Defense Agency The Missile Defense Agency (MDA) is the section of the United States government's Department of Defense responsible for developing a layered defense against ballistic missiles. It had its origins in the Strategic Defense Initiative (SDI) which ...

(MDA) *

National Geospatial-Intelligence Agency The National Geospatial-Intelligence Agency (NGA) is a combat support agency within the United States Department of Defense whose primary mission is collecting, analyzing, and distributing geospatial intelligence (GEOINT) in support of national ...

(NGA) *

National Reconnaissance Office The National Reconnaissance Office (NRO) is a member of the United States Intelligence Community and an agency of the United States Department of Defense which designs, builds, launches, and operates the reconnaissance satellites of the U.S. f ...

(NRO) *

National Security Agency The National Security Agency (NSA) is a national-level intelligence agency of the United States Department of Defense, under the authority of the Director of National Intelligence (DNI). The NSA is responsible for global monitoring, collecti ...

Central Security Service The Central Security Service (CSS) is a combat support agency of the United States Department of Defense which was established in 1972 to integrate the National Security Agency (NSA) and the Service Cryptologic Components (SCC) of the United Sta ...

(NSA/CSS) *

Office of Local Defense Community Cooperation The Office of Local Defense Community Cooperation (OLDCC), formerly the Office of Economic Adjustment (OEA), is a United States Department of Defense (DoD) field activity and the DoD's primary source for assisting communities that are adversel ...

(OLDCC), formerly Office of Economic Adjustment (OEA) ield Activity*

Pentagon Force Protection Agency The Pentagon Force Protection Agency (PFPA) is a federal law enforcement agency within the U.S. Department of Defense (DoD) charged with protecting and safeguarding the occupants, visitors, and infrastructure of The Pentagon, the Mark Center Bui ...

(PFPA) *

Space Development Agency The Space Development Agency (SDA) began as a directorate of the United States Department of Defense's office of the under secretary of defense for research and engineering ( OUSD (R&E)) which supports space development in the interests of U.S. ...

(SDA) *

Washington Headquarters Services Washington Headquarters Services (WHS) is a Department of Defense (DoD) Field Activity, created on October 1, 1977, to provide administrative and management support to multiple DoD components and military departments in the National Capital Region ...

(WHS) ield Activity*Other DOD Components: **

Armed Services Board of Contract Appeals The Armed Services Board of Contract Appeals (ASBCA) is an administrative tribunal within the United States Federal Government that hears certain claims arising from contract disputes between government contractors and either the Department of Defe ...

** Army and Air Force Exchange Service **

Defense Acquisition University The Defense Acquisition University (DAU) is a corporate university of the United States Department of Defense offering "acquisition, technology, and logistics" (AT&L) training to military and Federal civilian staff and Federal contractors. DAU is ...

(DAU) **

Defense Criminal Investigative Service The Defense Criminal Investigative Service is the criminal investigative arm of the Office of Inspector General, U.S. Department of Defense. DCIS protects military personnel by investigating cases of fraud, bribery, and corruption; preventing the ...

(DCIS) (component of DOD Office of Inspector General) **

Joint Personnel Recovery Agency The Joint Personnel Recovery Agency (JPRA) is a Chairman's Controlled Activity and is designated as DoD's office of primary responsibility for DoD-wide personnel recovery (PR) matters, less policy. JPRA is headquartered in Fort Belvoir, Virginia w ...

(a Chairman's Controlled Activity) **Military Postal Service Agency ** National Assessment Group (NAG) **

National Defense University The National Defense University (NDU) is an institution of higher education funded by the United States Department of Defense, intended to facilitate high-level education, training, and professional development of national security leaders. As ...

(NDU) ** National Guard Bureau (NGB) ***

Army National Guard The Army National Guard (ARNG), in conjunction with the Air National Guard, is an organized Militia (United States), militia force and a Reserve components of the United States Armed Forces, federal military reserve force of the United States A ...

(ARNG) ***

Air National Guard The Air National Guard (ANG), also known as the Air Guard, is a federal military reserve force of the United States Air Force, as well as the air militia of each U.S. state, the District of Columbia, the Commonwealth of Puerto Rico, and the ter ...

(ANG) **

National Intelligence University The National Intelligence University (NIU), formerly known as the Defense Intelligence School, the Defense Intelligence College, the Joint Military Intelligence College, and the National Defense Intelligence College is a federally chartered resea ...

(NIU) (part of DIA) **Organization of the

Joint Chiefs of Staff The Joint Chiefs of Staff (JCS) is the body of the most senior uniformed leaders within the United States Department of Defense, that advises the president of the United States, the secretary of defense, the Homeland Security Council and the ...

(includes NDU) **

Uniformed Services University of the Health Sciences Uniformed Services University of the Health Sciences (USU) is a health science university of the U.S. federal government. The primary mission of the school is to prepare graduates for service to the U.S. at home and abroad in the medical corps as ...

(USUHS) **

United States Court of Appeals for the Armed Forces The United States Court of Appeals for the Armed Forces (in case citations, C.A.A.F. or USCAAF) is an Article I court that exercises worldwide appellate jurisdiction over members of the United States Armed Forces on active duty and other pers ...

United States Military Entrance Processing Command The United States Military Entrance Processing Command (USMEPCOM) is a Major Command of the U.S. Department of Defense, which primarily screens and processes enlisted personnel applicants into the United States Armed Forces. USMEPCOM does n ...

(USMEPCOM) **Electromagnetic Spectrum Operations Cross Functional Team (EMSO CFT) **Close Combat Lethality Task Force (CCLTF) **Protecting Critical Technology Task Force (PCTTF)

Department of the Army

* U.S. Army Criminal Investigation Division (CID) *

U.S. Army Corps of Engineers , colors = , anniversaries = 16 June (Organization Day) , battles = , battles_label = Wars , website = , commander1 = ...

* Regional Headquarters ** Great Lakes Region ** Missouri River Regional Headquarters (CENWD-MR) (Former Missouri River Division) ** North Pacific Regional Headquarters (CENWD-NP)(Former North Pacific Division) * Army Digitization Office (ADO) * Army Medical Department (AMEDD) *

Army Research Laboratory The U.S. Army Combat Capabilities Development Command Army Research Laboratory (DEVCOM ARL) is the U.S. Army's foundational research laboratory. ARL is headquartered at the Adelphi Laboratory Center (ALC) in Adelphi, Maryland. Its largest sing ...

(ARL) * Army Review Boards Agency (ARBA) * U.S. Army Financial Management *

White Sands Missile Range White Sands Missile Range (WSMR) is a United States Army military testing area and firing range located in the US state of New Mexico. The range was originally established as the White Sands Proving Ground on 9July 1945. White Sands National P ...

(WSMR)

Army Corps of Engineers: Divisions

* Great Lakes and Ohio River Division (CELRD) * Mississippi Valley Division (CEMVD) * North Atlantic Division (CENAD) * Northwestern Division (CENWD) * Pacific Ocean Division (CEPOD) * South Atlantic Division (CESAD) * South Pacific Division (CESPD) * Southwestern Division (CESWD)

Army Corps of Engineers: Laboratories

Cold Regions Research and Engineering Laboratory The Cold Regions Research and Engineering Laboratory (CRREL) is a United States Army Corps of Engineers, Engineer Research and Development Center research facility headquartered in Hanover, New Hampshire, that provides scientific and engineering ...

(CECRL) * Construction Engineering Research Laboratory (CECER) *

Waterways Experiment Station The Waterways Experiment Station, also known as WES-Original Cantonment in Vicksburg, Mississippi, is a sprawling complex built in 1930 as a United States Army Corps of Engineers research facility. Its campus is the site of the headquarters of t ...

(CEWES) *

Topographic Engineering Center Topography is the study of the forms and features of land surfaces. The topography of an area may refer to the land forms and features themselves, or a description or depiction in maps. Topography is a field of geoscience and planetary sc ...

(CETEC)

Department of the Navy

Naval Criminal Investigative Service The United States Naval Criminal Investigative Service (NCIS) is the primary law enforcement agency of the U.S. Department of the Navy. Its primary function is to investigate criminal activities involving the Navy and Marine Corps, though its ...

(NCIS) *

United States Marine Corps Criminal Investigation Division The United States Marine Corps Criminal Investigation Division (Marine Corps CID or USMC CID) is a federal law enforcement agency that investigates crimes against people and property within the United States Marine Corps. Overview The United Sta ...

(USMC CID)

Navy

Office of Naval Research The Office of Naval Research (ONR) is an organization within the United States Department of the Navy responsible for the science and technology programs of the U.S. Navy and Marine Corps. Established by Congress in 1946, its mission is to plan ...

(ONR)
Naval Research Laboratory
(NRL) *

Office of Naval Intelligence The Office of Naval Intelligence (ONI) is the military intelligence agency of the United States Navy. Established in 1882 primarily to advance the Navy's modernization efforts, it is the oldest member of the U.S. Intelligence Community and serves ...

(ONI) *

United States Naval Academy The United States Naval Academy (US Naval Academy, USNA, or Navy) is a federal service academy in Annapolis, Maryland. It was established on 10 October 1845 during the tenure of George Bancroft as Secretary of the Navy. The Naval Academy ...

* Military Sealift Command (MSC)

Marine Corps

Marine Expeditionary Units
* Commandant of the Marine Corps * Assistant Commandant of the Marine Corps * Sergeant Major of the Marine Corps
Headquarters, United States Marine Corps

Department of the Air Force

Air Force

Air Force Research Laboratory The Air Force Research Laboratory (AFRL) is a scientific research organization operated by the United States Air Force Materiel Command dedicated to leading the discovery, development, and integration of aerospace warfighting technologies, pl ...

Air Force Reserve Officer Training Corps The Air Force Reserve Officer Training Corps (AFROTC) is one of the three primary commissioning sources for officers in the United States Air Force and United States Space Force, the other two being the United States Air Force Academy (USAFA) ...

(AFROTC) *

Air Force Office of Special Investigations The Department of the Air Force Office of Special Investigations (OSI) is a U.S. federal law enforcement agency that reports directly to the Secretary of the Air Force. OSI is also a U.S. Air Force field operating agency under the administrative ...

(AFOSI) Major Commands (MAJCOMs) *

Air Combat Command Air Combat Command (ACC) is one of nine Major Commands (MAJCOMs) in the United States Air Force, reporting to Headquarters, United States Air Force (HAF) at the Pentagon. It is the primary provider of air combat forces for the Air Force, and i ...

(ACC) *

Pacific Air Forces Pacific Air Forces (PACAF) is a Major Command (MAJCOM) of the United States Air Force and is also the air component command of the United States Indo-Pacific Command (USINDOPACOM). PACAF is headquartered at Joint Base Pearl Harbor–Hickam (fo ...

(PACAF) *

United States Air Forces in Europe United may refer to: Places * United, Pennsylvania, an unincorporated community * United, West Virginia, an unincorporated community Arts and entertainment Films * ''United'' (2003 film), a Norwegian film * ''United'' (2011 film), a BBC Two fi ...

(USAFE) * Air Force Special Operations Command (AFSOC) *

Air Education and Training Command Air Education and Training Command (AETC) is one of the nine List of major commands of the United States Air Force, Major Commands (MAJCOM) of the United States Air Force (USAF), reporting to Headquarters, United States Air Force. It was establis ...

(AETC) * Air Mobility Command (AMC) * Air Force Global Strike Command (AFGSC) * Air Force Materiel Command (AFMC) *

Air Force Reserve Command The Air Force Reserve Command (AFRC) is a major command (MAJCOM) of the United States Air Force, with its headquarters at Robins Air Force Base, Georgia. It is the federal Air Reserve Component (ARC) of the U.S. Air Force, consisting of commiss ...

(AFRC)

Space Force

Field Commands *

Space Operations Command Space Operations Command (SpOC) is the United States Space Force's space operations, cyber operations, and intelligence field command. It is headquartered at Peterson Space Force Base, Colorado and serves as the U.S. Space Force's service com ...

(SpOC) *

Space Systems Command Space Systems Command (SSC) is the United States Space Force's space development, acquisition, launch, and logistics field command. It is headquartered at Los Angeles Air Force Base, California and manages the United States' space launch ...

(SSC) *

Space Training and Readiness Command Space Training and Readiness Command (STAR Command or STARCOM) is the United States Space Force's education, training, doctrine, and test field command. It is headquartered at Peterson Space Force Base, Colorado. Space Training and Readiness ...

(STARCOM)

Unified Combatant Commands

The United States has eleven Combatant Commands (COCOM); seven Geographical Combatant Commands (GCC) & four Functional Combatant Commands (FCC). GCCs: * U.S. Africa Command (USAFRICOM) *

U.S. Central Command The United States Central Command (USCENTCOM or CENTCOM) is one of the eleven unified combatant commands of the U.S. Department of Defense. It was established in 1983, taking over the previous responsibilities of the Rapid Deployment Joint Tas ...

(USCENTCOM) * U.S. European Command (USEUCOM) *

U.S. Indo-Pacific Command United States Indo-Pacific Command (USINDOPACOM) is a unified combatant command of the United States Armed Forces responsible for the Indo-Pacific region. Formerly known as United States Pacific Command (USPACOM) since its inception in 1947, t ...

(USINDOPACOM) *

U.S. Northern Command United States Northern Command (USNORTHCOM) is one of eleven unified combatant commands of the United States Department of Defense. The command is tasked with providing military support for non-military authorities in the U.S., and protect ...

(USNORTHCOM) *

U.S. Southern Command The United States Southern Command (USSOUTHCOM), located in Doral, Florida in Greater Miami, is one of the eleven unified combatant commands in the United States Department of Defense. It is responsible for providing contingency planning, o ...

(USSOUTHCOM) * U.S. Space Command (USSPACECOM) FCCs: * U.S. Cyber Command (USCYBERCOM) *

U.S. Special Operations Command The United States Special Operations Command (USSOCOM or SOCOM) is the unified combatant command charged with overseeing the various special operations component commands of the Army, Marine Corps, Navy, and Air Force of the United States Arm ...

(USSOCOM) * U.S. Strategic Command (USSTRATCOM) *

U.S. Transportation Command The United States Transportation Command (USTRANSCOM) is one of eleven unified combatant commands of the United States Department of Defense. The command is located at Scott Air Force Base, Illinois, and was established in 1987. The USTRANSCO ...

(USTRANSCOM)

References

Most information on this list was taken fro
Government Information
Some pieces were taken fro
USA.gov
It's important to note that the DOD does not directly control any federal agencies working domestically, for example the CIA is an intelligence agency that works on foreign territory. {{US military navbox Isaccdo, Poiymelo and Drtechnovoid are all code names for spies in the DOD's Elite intelligence departments. *

Defense Defense or defence may refer to: Tactical, martial, and political acts or groups * Defense (military), forces primarily intended for warfare * Civil defense, the organizing of civilians to deal with emergencies or enemy attacks * Defense industr ...