List Of Formations Of The United States Army
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List Of Formations Of The United States Army
This is a list of historical formations of the United States Army. Units still in existence are in bold. For specific eras: * Formations of the United States Army during the Mexican Revolution * Formations of the United States Army during World War I * Formations of the United States Army during World War II * Formations of the United States Army during the Vietnam War * Formations of the United States Army during the War on Terrorism * List of current formations of the United States Army Army groups * 1st Army Group (World War II "phantom" formation) * 6th Army Group * 12th Army Group * 15th Army Group Field armies * First Allied Airborne Army * First United States Army—U.S. Army Training, Readiness, and Mobilization command formation * Second United States Army—United States Army Cyber Command * Third United States Army—United States Army Central command formation * Fourth United States Army * Fifth United States Army—United States Army North command formation * Sixth ...
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Formation (military)
Military organization or military organisation is the structuring of the armed forces of a state so as to offer such military capability as a national defense policy may require. In some countries paramilitary forces are included in a nation's armed forces, though not considered military. Armed forces that are not a part of military or paramilitary organizations, such as insurgent forces, often mimic military organizations, or use ''ad hoc'' structures, while formal military organization tends to use hierarchical forms. History The use of formalized ranks in a hierarchical structure came into widespread use with the Roman Army. In modern times, executive control, management and administration of military organization is typically undertaken by governments through a government department within the structure of public administration, often known as a ministry of defence or department of defense. These in turn manage military branches that themselves command formation ...
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United States Army Cyber Command
U.S. Army Cyber Command (ARCYBER) conducts information dominance and cyberspace operations as the Army service component command of United States Cyber Command.The official regulation, General Order (DA GO 2016-11) was signed by the Secretary of the Army and dated 11 July 2016Army Announces ARCYBER as an ASCC/ref> The command was established on 1 October 2010 and was intended to be the Army's single point of contact for external organizations regarding information operations and cyberspace. Mission United States Army Cyber Command directs and conducts integrated electronic warfare, information and cyberspace operations as authorized, or directed, to ensure freedom of action in and through cyberspace and the information environment, and to deny the same to its adversaries. Organization Army Cyber is the Army service component command supporting U.S. Cyber Command. All 41 of the Active Army's cyber mission force teams reached full operational capability (FOC) by September 2017. ...
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Fourteenth United States Army
Fourteenth United States Army was a fictitious/military deception field army, under the command of John P. Lucas, developed under Operation Quicksilver as a part of the fictitious First United States Army Group. Alleged composition As part of a psychological warfare campaign the Fourteenth Army was described by Agent Garbo in a message sent to German intelligence around 24 August 1944 claiming that his source in the ETO Services of Supply, who had a relative in the US 48th Infantry Division had advised him of: ...a lot of curious things about the basis of the composition of this Fourteenth US Army; amongst them he said that in their ranks there were many convicts who were released from prisons in the United States to be enrolled in a foreign legion of the French or Spanish type. It can almost be said that there are brigades composed of gangsters and bloodthirsty men, specially selected to fight against the Japanese, men who are not supposed to take prisoners, but instead to ...
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Tenth United States Army
The Tenth United States Army was the last army level command established during the Pacific War during World War II, and included divisions from both the U.S. Army and the U.S. Marine Corps. History The headquarters of the Tenth Army was formed in June 1944 at Pearl Harbor, Hawaii with the original intent of being the headquarters element for the land forces of the planned invasion of Taiwan. Following a conference at Pearl Harbor in July between President Franklin D. Roosevelt, Admiral Chester W. Nimitz and General Douglas MacArthur, it was decided to invade the Philippines instead of Taiwan. As a result, the Tenth Army did not have an operational assignment until the invasion of Okinawa in April 1945. Commanders The Tenth Army was commanded by Lieutenant General Simon Bolivar Buckner Jr. from its activation on 20 June 1944 until he was killed by enemy artillery fire on Okinawa on 18 June 1945. Major General Roy Geiger, USMC assumed temporary command, becoming the first Mar ...
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United States Army Africa
United States Army Africa (USARAF), also known as the ''Southern European Task Force'' (SETAF), was the United States Army service component command of United States Africa Command (USAFRICOM or AFRICOM). USARAF's headquarters were located on Caserma Ederle and Caserma Del Din, Vicenza, Italy. SETAF, latter known as USARAF/SETAF, has been stationed in Italy since 1955 and has a long history of operating on the African continent and partnering with African nations. During the past 15 years, SETAF has provided crisis response, disaster relief and humanitarian assistance on the continent. On 3 December 2008 in Rome, Italy, an official announcement by the U.S. and Italian governments stated that SETAF would become USARAF, and one week later on 9 December 2008 USARAF was established as the Army Service Component Command of AFRICOM. According to the Army Times, this marked the end of the airborne chapter of the unit's history and the beginning of its new role as the Army component o ...
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Ninth United States Army
The Ninth Army is a field army of the United States Army, garrisoned at Caserma Ederle, Vicenza, Italy. It is the United States Army Service Component Command of United States Africa Command (USAFRICOM or AFRICOM). Activated just eight weeks before the June 1944 Normandy landings, the Ninth Army was one of the main U.S. Army combat commands used during the campaign in Northwest Europe in 1944 and 1945. It was commanded at its inception by Lieutenant General William Simpson. It had been designated Eighth Army, but on arrival in the United Kingdom it was renamed to avoid confusion with the famous British formation of the same designation, taking the name of a unit of the fictitious First United States Army Group prepared for Operation Quicksilver. All American field armies in the European Theatre of Operation were designated with odd numbers, even numbered field armies served in the Pacific Theatre of Operations. History The first responsibility for Ninth Army, upon its arriv ...
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United States Army Korea
The Eighth Army is a U.S. field army which is the commanding formation of all United States Army United States Forces Korea, forces in South Korea. It commands U.S. and South Korean units and is headquartered at the Camp Humphreys,Yongsan garrison move pushed back to 2019
in the Anjeong-ri of Pyeongtaek, Pyeongtaek, South Korea. It is the only field army in the U.S. Army.


History


World War II

The unit first activated on 10 June 1944 in the United States, under the command of Lieutenant General Robert Eichelberger. The Eighth Army took part in many of the amphibious landings in the Southwest Pacific Theater of World War II, eventually participating in no less than sixty of them. The first mission of the Eighth Army, in September 1944, was to ta ...
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Eighth United States Army
The Eighth Army is a U.S. field army which is the commanding formation of all United States Army United States Forces Korea, forces in South Korea. It commands U.S. and South Korean units and is headquartered at the Camp Humphreys,Yongsan garrison move pushed back to 2019
in the Anjeong-ri of Pyeongtaek, Pyeongtaek, South Korea. It is the only field army in the U.S. Army.


History


World War II

The unit first activated on 10 June 1944 in the United States, under the command of Lieutenant General Robert Eichelberger. The Eighth Army took part in many of the amphibious landings in the Southwest Pacific Theater of World War II, eventually participating in no less than sixty of them. The first mission of the Eighth Army, in September 1944, was to ta ...
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United States Army Europe
United States Army Europe and Africa (USAREUR-AF) is an Army Service Component Command (ASCC) /Theater Army responsible for directing United States Army operations throughout the U.S. European Command (EUCOM) and U.S. Africa Command (AFRICOM) area of responsibility. During the Cold War, it supervised ground formations primarily focused upon the Warsaw Pact to the east as part of NATO's Central Army Group. Since the revolutions of 1989, it has greatly reduced its size, dispatched U.S. forces to the Gulf Wars of 1990-91 and the 2003 invasion of Iraq, the Kosovo War, the War in Afghanistan (2001–2021) and increased security cooperation with other NATO land forces. In 2020, the Army announced that United States Army Africa would consolidate with U.S. Army Europe to form a new command, U.S. Army Europe and Africa. The two commands were consolidated on November 20, 2020. History World War II The European Theater of Operations, United States Army (ETOUSA) was a Theater of Ope ...
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Seventh United States Army
The Seventh Army was a United States army created during World War II that evolved into the United States Army Europe (USAREUR) during the 1950s and 1960s. It served in North Africa and Italy in the Mediterranean Theater of Operations and France and Germany in the European Theater between 1942 and 1945. Originally the I Armored Corps under command of Lieutenant General George S. Patton, it made landfall at Morocco during Operation Torch as the Western Task Force, the first all-U.S. force to enter the European war. Following successful defeat of the Wehrmacht under Field Marshal Erwin Rommel in North Africa, the I Armored Corps was redesignated the Seventh Army on 10 July 1943 while at sea en route to the Allied invasion of Sicily as the spearhead of Operation Husky. After the conquests of Palermo and Messina the Seventh Army prepared for the invasion of France by its Mediterranean coast as the lead element of Operation Dragoon in August 1944. It then drove a retreating German ...
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United States Army South
United States Army South is an Army service component command of United States Southern Command whose area of responsibility includes 31 countries and 15 areas of special sovereignty in Central and South America and the Caribbean. It is headquartered at Fort Sam Houston, Texas. U.S. Army South's currently officially stated mission is to conduct and support multinational operations and security cooperation in the United States Southern Command area of responsibility in order to counter transnational threats and strengthen regional security in defense of the homeland. It may be still required to serve as a Joint Task Force Land Component Command or Joint Task Force, as directed. Panama Canal Department The Isthmian Canal Commission of 1904–1914 and the Panama Canal Guard both played a pivotal role in the construction and early defense of the Canal. The Panama Canal Guard was active from 1907 to 1917. On 1 July 1917, the Panama Canal Department was established as a separate geo ...
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Sixth United States Army
Sixth Army is a theater army of the United States Army. The Army service component command of United States Southern Command, its area of responsibility includes 31 countries and 15 areas of special sovereignty in Central and South America and the Caribbean. It is headquartered at Fort Sam Houston. The Sixth Army saw extensive service in the South Pacific during World War II, including in New Britain, New Guinea, and the Philippines. Postwar it served stateside training army forces until its inactivation during force reduction in 1995. The army was reactivated in 2007. History The Sixth United States Army was activated in January 1943, commanded by Lieutenant General Walter Krueger. Under the code name Alamo Force, it assumed control of the majority of US Army units involved in Operation Cartwheel, the campaign to isolate and neutralize the Japanese base at Rabaul in New Britain. Following the completion of Cartwheel, Sixth Army joined the Australian Army and other US forces ...
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