The first F-35 Lightning II of the 33rd Fighter Wing arriving at Eglin AFB
An Air Force RQ-4 strategic reconnaissance aircraft
President Truman signs the National Security Act Amendment of 1949
An Air Force KC-46 Pegasus refuels a C-17A Globemaster III
Department of Defense organizational chart (December 2013)
An Air Force A-10 demonstrating close air support at Nellis AFB
2008 OSD organizational chart
Test launch of a LGM-30 Minuteman Intercontinental Ballistic Missile from Vandenberg AFB
Joint Chiefs of Staff/Joint Staff organizational chart
Combined Air Operations Center at Al Udeid Air Base
Combatant command areas of responsibility
Roundels that have appeared on U.S. military aircraft
1.) 5/1917–2/1918
2.) 2/1918–8/1919
3.) 8/1919–5/1942
4.) 5/1942–6/1943
5.) 6/1943–9/1943
6.) 9/1943–1/1947
7.) 1/1947–
Defense Spending as a Percent of GDP (1792–2017)
The SR-71 Blackbird was a Cold War reconnaissance plane.
Total United States Defense Outlays 1962–2024, $millions (2019-2024 estimated)
The F-117 Nighthawk was a stealth attack aircraft (retired from service in April 2008).
Defense Intelligence Agency
A row of Douglas C-54 Skymasters during the Berlin Airlift in 1949
National Security Agency
Various Air Force personnel pose during the Air Force's 74th birthday celebration at the Pentagon, September 17, 2021.
National Geospatial-Intelligence Agency
Organization of the United States Air Force within the Department of Defense
National Reconnaissance Office
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Department of the Army
Pararescuemen and a simulated "survivor" watch as an HH-60G Pave Hawk helicopter comes in for a landing
Department of the Navy
U.S. Air Force trainee demonstrating a butt stroke on a strike dummy as part of Basic Military Training.
Department of the Air Force
USAF Airmen training at Lackland AFB
U.S. Army
A-10 Thunderbolt II ground-attack aircraft
U.S. Marine Corps
B-2 Spirit stealth bomber
U.S. Navy
A C-17 Globemaster III, the USAF's newest and most versatile transport plane
U.S. Air Force
E-3 Sentry airborne warning and control system
U.S. Space Force
F-22 Raptor stealth air superiority fighter
KC-10 Extender tri-jet air-to-air tanker
An MC-12W Liberty at Beale AFB
MQ-9 unmanned aerial vehicle
Lockheed U-2 spy plane
RQ-170 Sentinel stealth unmanned aerial vehicle reconnaissance aircraft
VC-25A (Air Force One)
A WC-130J Hercules from the 53rd Weather Reconnaissance Squadron
An unarmed Minuteman III ICBM shoots out of the silo during an operational test launch

The U.S. Air Force is a military service branch organized within the Department of the Air Force, one of the three military departments of the Department of Defense.

- United States Air Force

On 26 July 1947, Truman signed the National Security Act of 1947, which set up a unified military command known as the "National Military Establishment", as well as creating the Central Intelligence Agency, the National Security Council, National Security Resources Board, United States Air Force (formerly the Army Air Forces) and the Joint Chiefs of Staff.

- United States Department of Defense
The first F-35 Lightning II of the 33rd Fighter Wing arriving at Eglin AFB

10 related topics

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The Joint Chiefs of Staff in December 2020.

United States Armed Forces

The United States Armed Forces are the military forces of the United States.

The United States Armed Forces are the military forces of the United States.

The Joint Chiefs of Staff in December 2020.
Organization of the military services and military departments within the Department of Defense
Logo of the United States Army
U.S. Army Soldiers with 2nd Battalion, 327th Infantry Regiment, 101st Airborne Division return fire during a firefight with Taliban forces in Barawala Kalay Valley in Kunar province, Afghanistan on 31 March 2011.
U.S. Army M1A2 Abrams tanks from the 3rd Armored Cavalry Regiment maneuver in the streets as they conduct a combat patrol in the city of Tall Afar, Iraq, on Feb. 3, 2005.
Eagle, Globe, and Anchor
U.S. Marines with India Company, Battalion Landing Team, 3rd Battalion, 2nd Marine Regiment, 22nd Marine Expeditionary Unit run on the beach during an amphibious assault demonstration.
A U.S. Marine Corps MV-22 Osprey tiltrotor aircraft attached to VMX-22 prepares to land on the amphibious assault ship USS America (LHA-6) in the Pacific Ocean.
Logo of the United States Navy
USS John C. Stennis (CVN-74) and Carrier Strike Group 3 underway with Republic of Korea Navy ships.
USS Nebraska (SSBN-739), an 
 ballistic missile submarine underway in the Atlantic Ocean.
United States Air Force Symbol
F-22A Raptors in flight.
U.S. Air Force B-2A Spirit stealth bombers flying with Royal Air Force F-35B Lightning II stealth fighters.
Space Force Delta
The Sodium Guidestar at the Directed Energy Directorate's Starfire Optical Range for real-time, high-fidelity tracking and imaging of satellites.
Boeing X-37B spaceplane after deorbiting and landing.
Service mark of the United States Coast Guard
USCGC Hamilton and TCG Turgutries in the Black Sea, April 30, 2021.
Coast Guard Reserve Port Security boat on patrol
Unified combatant commands areas of responsibility
A pie chart showing global military expenditures by country for 2019, in US$ billions, according to SIPRI
Sergeant Leigh Ann Hester, awarded the Silver Star for direct combat
ADM Linda L. Fagan June 2021.

The armed forces consists of six service branches: the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard.

The president of the United States is the commander-in-chief of the armed forces and forms military policy with the Department of Defense (DoD) and Department of Homeland Security (DHS), both federal executive departments, acting as the principal organs by which military policy is carried out.

United States Secretary of Defense

Seal of the National Military Establishment (1947–1949)
Donald Rumsfeld is sworn-in as Secretary of Defense by Associate Supreme Court Justice Potter Stewart as U.S. President Gerald R. Ford and Chairman of The Joint Chiefs of Staff General George S. Brown watch at The Pentagon on November 20, 1975.
Department of Defense organizational chart (December 2013)

The United States secretary of defense (SecDef) is the head of the United States Department of Defense, the executive department of the U.S. Armed Forces, and is a high ranking member of the federal cabinet.

Subject only to the orders of the president, the secretary of defense is in the chain of command and exercises command and control, for both operational and administrative purposes, over all service branches administered by the Department of Defense – the Army, Marine Corps, Navy, Air Force, and Space Force – as well as the Coast Guard when its command and control is transferred to the Department of Defense.

Seal of National Military Establishment (1947–1949), which was later renamed the Department of Defense.

National Security Act of 1947

Law enacting major restructuring of the United States government's military and intelligence agencies following World War II.

Law enacting major restructuring of the United States government's military and intelligence agencies following World War II.

Seal of National Military Establishment (1947–1949), which was later renamed the Department of Defense.
Seal of the Department of the Air Force, established by the National Security Act of 1947.
President Truman signs the National Security Act Amendment of 1949. Secretary of Defense Louis A. Johnson leans over the desk. Behind him is Admiral Louis Denfeld, General Omar N. Bradley, and General Hoyt Vandenberg.
The first page of the National Security Act of 1947.
The last page of the National Security Act of 1947. Signed by Speaker of the House of Representatives Joseph W. Martin, Jr. (R-MA), President of the Senate pro tempore Arthur H. Vandenberg (R-MI), and President Harry S. Truman.
President Truman signed the National Security Act of 1947 on board this VC-54C Presidential transport, the first aircraft used for the role of Air Force One.

The act merged the Department of the Army (renamed from the Department of War), the Department of the Navy, and the newly established Department of the Air Force (DAF) into the National Military Establishment (NME).

The act also created the position of the secretary of defense as the head of the NME It established the United States Air Force under the DAF, which worked to separate the Army Air Forces into its own service.

The storming of Redoubt No. 10 in the Siege of Yorktown during the American Revolutionary War prompted Great Britain's government to begin negotiations, resulting in the Treaty of Paris and Great Britain's recognition of the United States as an independent state.

United States Army

Land service branch of the United States Armed Forces.

Land service branch of the United States Armed Forces.

The storming of Redoubt No. 10 in the Siege of Yorktown during the American Revolutionary War prompted Great Britain's government to begin negotiations, resulting in the Treaty of Paris and Great Britain's recognition of the United States as an independent state.
General Andrew Jackson standing on the parapet of his makeshift defenses as his troops repulse attacking Highlanders during the defense of New Orleans, the final major and most one-sided battle of the War of 1812
The Battle of Gettysburg, the turning point of the American Civil War
Army soldiers in 1890
U.S. Army troops assaulting a German bunker in France, c. 1918
U.S. soldiers hunting for Japanese infiltrators during the Bougainville Campaign
U.S. Army soldiers observing an atomic bomb test of Operation Buster-Jangle at the Nevada Test Site during the Korean War
US tanks and Soviet tanks at Checkpoint Charlie, 1961
A U.S. Army infantry patrol moving up to assault the last North Vietnamese Army position at Dak To, South Vietnam during Operation Hawthorne
U.S. Army soldiers preparing to take La Comandancia in the El Chorrillo neighborhood of Panama City during Operation Just Cause
M1 Abrams tanks moving out before the Battle of Al Busayyah during the Gulf War
Iraqi tanks destroyed by Task Force 1-41 Infantry during the Gulf War, February 1991
U.S. Army Rangers taking part in a raid during an operation in Nahr-e Saraj, Afghanistan
U.S. Army soldiers with the 2nd Battalion, 327th Infantry Regiment, 101st Airborne Division returning fire during a firefight with Taliban forces in Barawala Kalay Valley in Kunar province, Afghanistan, March 2011
Organization of the United States Army within the Department of Defense
U.S. Army organization chart
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U.S. Army soldiers of the 1st Battalion, 175th Infantry Regiment, Maryland Army National Guard conducting an urban cordon and search exercise as part of the army readiness and training evaluation program in the mock city of Balad at Fort Dix, New Jersey
U.S. soldiers from the 6th Infantry Regiment taking up positions on a street corner during a foot patrol in Ramadi, Iraq
The 1st Cavalry Division's combat aviation brigade performing a mock charge with the horse detachment
U.S. Army Special Forces soldiers from the 3rd Special Forces Group patrolling a field in the Gulistan district of Farah, Afghanistan
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U.S. Army Rangers practicing fast roping techniques from an MH-47 during an exercise at Fort Bragg
A trainer with Company A, 1st Battalion 502nd Infantry Regiment, Task Force Strike, 101st Airborne Division assisting Iraqi army ranger students during a room clearing drill at Camp Taji, Iraq on 18 July 2016
U.S. Army soldiers familiarizing with the latest INSAS 1B1 during exercise Yudh Abhyas 2015
A Lockheed Martin Terminal High Altitude Area Defense (THAAD) system used for ballistic missile protection
A U.S. soldier on patrol in Iraq with the support of a Humvee vehicle
3rd Infantry Division soldiers manning an M1A1 Abrams in Iraq
The 2020 Army Greens uniform
An element of the 18th Infantry Regiment, wearing ASUs, representing the United States at the 2010 Victory Day commemoration in Moscow
The Ranger Honor Platoon marching in their tan berets and former service uniform

The U.S. Army is a uniformed service of the United States and is part of the Department of the Army, which is one of the three military departments of the Department of Defense.

Two years after World War II, the Army Air Forces separated from the army to become the United States Air Force in September 1947.

Emblem of the United States Marine Corps

United States Marine Corps

Maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combined arms, implementing its own infantry, artillery, aerial, and special operations forces.

Maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combined arms, implementing its own infantry, artillery, aerial, and special operations forces.

Emblem of the United States Marine Corps
U.S. Marines from the 31st Marine Expeditionary Unit training
Marines from the 15th Marine Expeditionary Unit depart USS Tarawa (LHA-1), using both a Landing Craft Utility and CH-53E "Super Stallion" helicopters, during amphibious operations in Kuwait, 2003.
Maj. Samuel Nicholas, first Commandant of the Marine Corps, was nominated to lead the Continental Marines by John Adams in November 1775.
British and U.S. troops garrisoned aboard Hornet and Penguin exchanging small arms musket fire with Tristan da Cuna in the background during the final engagement between British and U.S. forces in the War of 1812
The Final Stand at Bladensburg, Maryland, 24 August 1814
Five USMC privates with fixed bayonets, and their NCO with his sword at the Washington Navy Yard, 1864
Georges Scott, American Marines in Belleau Wood, 1918
Former French Foreign Legion Lieutenant, and U.S. Marine Corps officer Peter J. Ortiz, who served in the European theater, often behind enemy lines
Photograph of the Marine Corps War Memorial, which depicts the second U.S. flag-raising atop Mount Suribachi, on Iwo Jima. The memorial is modeled on Joe Rosenthal's famous Raising the Flag on Iwo Jima.
F4U Corsairs providing close air support to Marines of the 1st Marine Division fighting Chinese forces in North Korea, December 1950
U.S. Marines of "G" Company, 2nd Battalion, 7th Marines in action during Operation Allen Brook in South Vietnam, 1968
Beirut Memorial at Marine Corps Base Camp Lejeune
U.S. Marines from 1st Battalion, 7th Marines entering a palace in Baghdad in 2003
U.S. Marines dismounting from an Assault Amphibious Vehicle in Djibouti
Organization of the United States Marine Corps
Marine Raiders conducting CQB training
Opha Johnson (far right) in 1946, with Katherine Towle (far left). They are looking at Opha Johnson's uniform being worn by PFC Muriel Albert.
Two of the first female graduates of the School of Infantry-East's Infantry Training Battalion course, 2013
Marine recruits at Marine Corps Recruit Depot San Diego
U.S. Marines in training
An illustration of U.S. Marines in various uniform setups. From left to right: A U.S. Marine in a Marine Corps Combat Utility Uniform with full combat load circa 2003, a U.S. Marine in a (full) blue dress uniform, a U.S. Marine officer in a service uniform, and a U.S. Marine general in an evening dress uniform.
The Eagle, Globe and Anchor along with the U.S. flag, the Marine Corps flag and the Commandant's flag
A recruiting poster making use of the "Teufel Hunden" [sic] nickname
Marines training in martial arts
Marines firing MEU(SOC) pistols while garrisoned aboard a ship
Marine Amphibious Assault Vehicles emerge from the surf onto the sand of Freshwater Beach, Australia
Marine parachutists jumping from an MV-22 Osprey at 10,000 feet
A Marine Corps F-35B, the vertical-landing version of the F-35 Lightning II multirole fighter landing aboard USS Wasp (LHD-1)
Assault Amphibious Vehicles approaching the well deck of USS Bonhomme Richard (LHD-6)
A Marine and sailor training with rifles in Iraq
A soldier from the 1st Infantry Regiment provides security for a joint Army-Marine patrol in Rawa in 2006. The shoulder sleeve insignia has the logo of the 2nd Marine Division.
Marines unloading CH-46 Sea Knight helicopters from an Air Force C-5 Galaxy

Development of tactics, technique, and equipment used by amphibious landing forces in coordination with the Army and Air Force; and

Such other duties as the President or Department of Defense may direct.

Emblem of the United States Navy

United States Navy

Maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States.

Maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States.

Emblem of the United States Navy
USS Constellation vs L'Insurgente during the Quasi-War
USS Constitution vs HMS Guerriere during the War of 1812
A carte de visite of a U.S. Navy lieutenant during the Civil War
The Great White Fleet demonstrating U.S. naval power in 1907; it was proof that the U.S. Navy had blue-water capability.
Columbia, personification of the United States, wearing a warship bearing the words "World Power" as her "Easter bonnet" on the cover of Puck, 6 April 1901
Battleship USS Idaho (BB-42) shelling Okinawa on 1 April 1945.
USS George Washington (SSBN-598), a ballistic missile submarine
U.S. Navy officers aboard the aircraft carrier USS Abraham Lincoln (CVN-72) monitor defense systems during early 2010s maritime security operations exercises
U.S. Navy patrol boat near Kuwait Naval Base in 2009
The amphibious assault ship USS America (LHA-6), launched in 2012.
Organization of the United States Navy within the Department of Defense
Simplified flowchart of the U.S. Navy command structure
Areas of responsibility for each of the United States Navy fleets. Tenth Fleet serves as the numbered fleet for U.S. Fleet Cyber Command and therefore is not shown.
USS Kitty Hawk (CV-63) docking at the U.S. Navy base in Yokosuka, Japan
A Marine F/A-18 from VMFA-451 preparing to launch from USS Coral Sea (CV-43)
A U.S. Coast Guard helicopter preparing to land on the flight deck of the amphibious assault ship USS Wasp (LHD-1)
Navy SEALs at one of the entrances to the Zhawar Kili cave complex
U.S. Navy warrant officer specialty insignias
Map of naval bases in the United States
Underwater Demolition Team members using the casting technique from a speeding boat
Combat Camera Underwater Photo Team – A U.S. Navy diver during underwater photography training off the coast of Guantanamo Bay
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USS Nimitz, a
USS Bataan (LHD-5), a
USS San Antonio (LPD-17), a
USS Port Royal (CG-73), a
USS Zumwalt (DDG-1000), a Zumwalt-class stealth guided missile destroyer
USS Independence (LCS-2), a Littoral combat ship
USS Freedom (LCS-1) underway in special naval camouflage
USS Warrior (MCM-10) in port
USS Typhoon (PC-5) departing Naval Amphibious Base Little Creek in Virginia
USS Kentucky (SSBN-737), an ballistic missile submarine
USS Virginia (SSN-774), a attack submarine
Four Navy F/A-18F Super Hornets
U.S. Navy MH-60R maritime strike helicopter assigned to the HSM-78 Blue Hawks aboard the carrier USS Carl Vinson
Aviation Ordnancemen loading GBU-12 bombs in 2005
U.S. naval jack
First navy jack
Naval Aviator Badge
Submarine Officer badge
Surface Warfare Officer Insignia

The Department of the Navy is itself a military department of the Department of Defense, which is headed by the Secretary of Defense.

Naval fixed-wing aircraft employ much of the same weapons as the United States Air Force for both air-to-air and air-to-surface combat.

AAF Shoulder Sleeve Insignia

United States Army Air Forces

The major land-based aerial warfare service component of the United States Army and de facto aerial warfare service branch of the United States during and immediately after World War II (1941–1945).

The major land-based aerial warfare service component of the United States Army and de facto aerial warfare service branch of the United States during and immediately after World War II (1941–1945).

AAF Shoulder Sleeve Insignia
General of the Army Henry H. ("Hap") Arnold
USAAF recruitment poster
Tuskegee Airmen War bonds poster
1943 portrait of WAC air controller
AAF Training Command patch
USAAF recruiting poster
USAAF insignia from July 1943 to January 1947
B-17G Fortresses of the 306th Bomb Group
P-51 Mustang of 361st Fighter Group, 1944
Taylorcraft L-2
C-47 of the 438th Troop Carrier Group
USAAF AT-6Cs near Luke Field, 1943
UC-64 Norseman
General Carl A. Spaatz
Medal of Honor recipient Major Richard Bong in Officer's Service Dress
Awards ceremony at RAF Debden, April 1944, illustrating varying shades of olive drab and the M-1944 "Ike jacket". Light shade 33 on left, dark shade 51 on right. Trousers are shade 33, khaki shade 1, and drab shade 54. The three combinations at right are "pinks and greens".
At the AAF School of Air Evacuation at Bowman Field, Ky., student flight nurses learned how to handle patients with the aid of a mock-up fuselage of a Douglas C-47 transport.
Female service dress in OD shade 33 at Randolph Field, 1944
USAAF flight crew
First Air Force
Second Air Force
Third Air Force
Fourth Air Force
Fifth Air Force
Sixth Air Force
Seventh Air Force
Eighth Air Force
Ninth Air Force
Tenth Air Force
Eleventh Air Force
Twelfth Air Force
Thirteenth Air Force
Fourteenth Air Force
Fifteenth Air Force
Twentieth Air Force

It was created on 20 June 1941 as successor to the previous United States Army Air Corps and is the direct predecessor of the United States Air Force, today one of the six armed forces of the United States.

As all 48 states then part of the Union were contained within the contiguous United States, the term "Zone of the Interior" for the First through Fourth Air Forces' areas of assignment was the Second World War's term for what is called "CONUS" by today's United States Department of Defense in the 21st century.

Seal of the U.S. Space Force, which is organized within the Department of the Air Force.

United States Department of the Air Force

Seal of the U.S. Space Force, which is organized within the Department of the Air Force.
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The United States Department of the Air Force (DAF) is one of the three military departments within the Department of Defense of the United States of America.

The Department of the Air Force was formed on September 18, 1947, per the National Security Act of 1947 (codified into Title 10 of the United States Code) and it is the military department within which the United States Air Force and the United States Space Force are organized.

Official portrait, c. 1947

Harry S. Truman

The 33rd president of the United States, serving from 1945 to 1953.

The 33rd president of the United States, serving from 1945 to 1953.

Official portrait, c. 1947
Truman's home in Independence, Missouri
Truman in uniform, c. undefined 1918
Harry and Bess Truman on their wedding day,
Drawer from the Senate desk used by Truman
Results of the 1934 U.S. Senate election in Missouri; Truman won the counties in blue
Joseph Stalin, Harry S. Truman, and Winston Churchill in Potsdam, July 1945
Truman announces Japan's surrender, August 14, 1945.
Truman with Greek-American sponge divers in Florida, 1947
Truman's press secretary was his old friend Charles Griffith Ross. He had great integrity but, says Alonzo L. Hamby, as a senior White House aide he was, "A better newsman than news handler, he never established a policy of coordinating news releases throughout the executive branch, frequently bumbled details, never developed ... a strategy for marketing the president's image and failed to establish a strong press office."
Truman in the Oval Office, receiving a Hanukkah Menorah from the prime minister of Israel, David Ben-Gurion (center). To the right is Abba Eban, ambassador of Israel to the United States.
President Truman (left) with Governor Dewey (right) at dedication of the Idlewild Airport, meeting for the first time since nominated by their respective parties for the Presidency
1948 electoral vote results
Truman was so widely expected to lose the 1948 election that the Chicago Tribune had printed papers with this erroneous headline when few returns were in.
President Truman signing a proclamation declaring a national emergency and authorizing U.S. entry into the Korean War
Truman and Indian Prime Minister Jawaharlal Nehru during Nehru's visit to the United States, October 1949
Truman and Shah of Iran Mohammad Reza Pahlavi speaking at Washington National Airport, during ceremonies welcoming him to the United States
Official portrait of President Truman by Greta Kempton, c. 1945
View of the interior shell of the White House during renovation in 1950
Truman in an official portrait
President Truman; Alabama Senator John J. Sparkman, vice presidential nominee; and Illinois Governor Adlai Stevenson, presidential nominee, in the Oval Office, 1952
President Truman conferring with labor leader Walter Reuther about economic policy in the Oval Office, 1952
Truman and his wife Bess attend the signing of the Medicare Bill on July 30, 1965, by President Lyndon B. Johnson
Wreath by Truman's casket, December 27, 1972
Truman poses in 1959 at the recreation of the Truman Oval Office at his presidential library, with the famous "The Buck Stops Here" sign on his desk. (The reverse of the sign says, "I'm From Missouri".) Attendees to meetings where Truman would have to make a major decision would sometimes see the president looking at the sign.
Harry S. Truman Presidential Library and Museum in Independence, Missouri
Stamp issued in 1973, following Truman's death. Truman has been honored on five U.S. postage stamps, issued between 1973 and 1999.

As part of the U.S. Cold War strategy, Truman signed the National Security Act of 1947 and reorganized military forces by merging the Department of War and the Department of the Navy into the National Military Establishment (later the Department of Defense) and creating the U.S. Air Force.

Emblem of United States Transportation Command

United States Transportation Command

Emblem of United States Transportation Command
The Military Sealift Command large, medium-speed roll-on/roll-off ship USNS Red Cloud (T-AKR 313) participates in Combined Joint Logistics Over-the-Shore (CJLOTS) 2015 at Anmyeon Beach, Republic of Korea.
Berliners watch a Douglas C-54 Skymaster land at Tempelhof Airport, during the Berlin Airlift in 1948.
Military Surface Deployment and Distribution Command, 597th Transportation Brigade, 842nd Trans. Battalion, orchestrates simultaneous terminal operations for the loading of unit equipment headed overseas and the offloading of cargo returning from Afghanistan at the Port of Beaumont and at Port of Port Arthur, Texas, 8–20 Dec 2013.
A West Virginia Air National Guard C-130 Hercules prepares to offload cargo at Camp Shelby Joint Forces Training Center, Miss., during Exercise Turbo Distribution, 28 October 2015.
USNS Shughart, a non-combatant RORO vessel, unloading Stryker armored vehicles
Defense Secretary Chuck Hagel passes the TRANSCOM command flag to incoming combatant commander General Paul J. Selva in a change of command ceremony on 5 May 2014.

The United States Transportation Command (USTRANSCOM) is one of eleven unified combatant commands of the United States Department of Defense.

It is composed of three service component commands: The Air Force's Air Mobility Command, the Navy's Military Sealift Command and the Army's Surface Deployment and Distribution Command.