The Twelfth United States

Army Group An army group is a military organization consisting of several field armies, which is self-sufficient for indefinite periods. It is usually responsible for a particular geographic area. An army group is the largest field organization handled by ...

was the largest and most powerful

United States 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 ...

formation ever to take to the field, commanding four

field armies A field army (or numbered army or simply army) is a military formation in many armed forces, composed of two or more corps and may be subordinate to an army group. Likewise, air armies are equivalent formation within some air forces, and withi ...

at its peak in 1945:

First United States Army First Army is the oldest and longest-established field army of the United States Army. It served as a theater army, having seen service in both World War I and World War II, and supplied the US army with soldiers and equipment during the Korea ...

Third United States Army Third or 3rd may refer to: Numbers * 3rd, the ordinal form of the cardinal number 3 * , a fraction of one third * 1⁄60 of a ''second'', or 1⁄3600 of a ''minute'' Places * 3rd Street (disambiguation) * Third Avenue (disambiguation) * Hig ...

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 bef ...

and

Fifteenth United States Army The Fifteenth United States Army, commonly known as Fifteenth Army, was a field army of the United States in the European Theater of World War II. It was the last United States field army to see service in northwestern Europe during the war a ...

. Formed eight days after the

Normandy landings The Normandy landings were the landing operations and associated airborne operations on Tuesday, 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and often referred to as ...

, it initially controlled the First and the Third US Armies. Through various configurations in 1944 and 1945, the Twelfth US Army Group controlled the majority of American forces on the Western Front. It was commanded by General

Omar Bradley Omar Nelson Bradley (February 12, 1893April 8, 1981) was a senior Officer (armed forces), officer of the United States Army during and after World War II, rising to the rank of General of the Army (United States), General of the Army. Bradley ...

with its headquarters established in London on 14 July 1944. During the first week of the Normandy landings and the

Battle of Normandy Operation Overlord was the codename for the Battle of Normandy, the Allied operation that launched the successful invasion of German-occupied Western Europe during World War II. The operation was launched on 6 June 1944 (D-Day) with the Norma ...

, Bradley's First US Army formed the right wing of the

Allied An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not explicit agreement has been worked out among them. Members of an alliance are called ...

lines. They were joined during July by the Third US Army, under the command of General

George S. Patton George Smith Patton Jr. (November 11, 1885 – December 21, 1945) was a general in the United States Army who commanded the Seventh United States Army in the Mediterranean Theater of World War II, and the Third United States Army in France ...

, to form the Twelfth Army Group. Twelfth Army Group became operational in France on 1 August 1944. With General Omar Bradley assuming command of the Twelfth Army Group, Lieutenant General

Courtney Hodges General Courtney Hicks Hodges (January 5, 1887 – January 16, 1966) was a decorated senior officer in the United States Army who commanded First U.S. Army in the Western European Campaign of World War II. Hodges was a notable "mustang" officer ...

assumed command of the First Army. Until 1 September 1944, when

General Eisenhower Dwight David "Ike" Eisenhower (born David Dwight Eisenhower; ; October 14, 1890 – March 28, 1969) was an American military officer and statesman who served as the 34th president of the United States from 1953 to 1961. During World War II, ...

assumed overall command of the Allied land forces in

Northwest Europe Northwestern Europe, or Northwest Europe, is a loosely defined subregion of Europe, overlapping Northern and Western Europe. The region can be defined both geographically and ethnographically. Geographic definitions Geographically, Northw ...

, the U.S. forces in Normandy were included with the

British Second Army The British Second Army was a field army active during the First and Second World Wars. During the First World War the army was active on the Western Front throughout most of the war and later active in Italy. During the Second World War the army ...

and the

First Canadian Army The First Canadian Army (french: 1reArmée canadienne) was a field army and a formation of the Canadian Army in World War II in which most Canadian elements serving in North-West Europe were assigned. It served on the Western Front from July 1944 ...

in the British headquarters formation

21st Army Group The 21st Army Group was a British headquarters formation formed during the Second World War. It controlled two field armies and other supporting units, consisting primarily of the British Second Army and the First Canadian Army. Established in ...

, commanded by

General Montgomery Field Marshal Bernard Law Montgomery, 1st Viscount Montgomery of Alamein, (; 17 November 1887 – 24 March 1976), nicknamed "Monty", was a senior British Army officer who served in the First World War, the Irish War of Independence and ...

. After the breakout from the beach-head at Normandy, the Twelfth Army Group formed the center of the Allied forces on the Western Front. To the north was the British 21st Army Group (the First Canadian and British Second)) and, to the south, advancing from their

landing Landing is the last part of a flight, where a flying animal, aircraft, or spacecraft returns to the ground. When the flying object returns to water, the process is called alighting, although it is commonly called "landing", "touchdown" or ...

on the Mediterranean coast, was the

Sixth United States Army Group The 6th United States Army Group was an Allied Army Group that fought in the European Theater of Operations during World War II. Made up of field armies from both the United States Army and the French Army, it fought in France, Germany, A ...

(

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 Fran ...

and

French First Army The First Army (french: 1re Armée) was a field army of France that fought during World War I and World War II. It was also active during the Cold War. First World War On mobilization in August 1914, General Auguste Dubail was put in the ch ...

). As the Twelfth advanced through Germany in 1945, it grew to control four United States field armies: the

First First or 1st is the ordinal form of the number one (#1). First or 1st may also refer to: *World record, specifically the first instance of a particular achievement Arts and media Music * 1$T, American rapper, singer-songwriter, DJ, and rec ...

, the

Third Third or 3rd may refer to: Numbers * 3rd, the ordinal form of the cardinal number 3 * , a fraction of one third * Second#Sexagesimal divisions of calendar time and day, 1⁄60 of a ''second'', or 1⁄3600 of a ''minute'' Places * 3rd Street (d ...

, the

Ninth In music, a ninth is a compound interval consisting of an octave plus a second. Like the second, the interval of a ninth is classified as a dissonance in common practice tonality. Since a ninth is an octave larger than a second, its ...

and the

Fifteenth In music, a fifteenth or double octave, abbreviated ''15ma'', is the interval between one musical note and another with one-quarter the wavelength or quadruple the frequency. It has also been referred to as the bisdiapason. The fourth harmonic, ...

. By

V-E Day Victory in Europe Day is the day celebrating the formal acceptance by the Allies of World War II of Germany's unconditional surrender of its armed forces on Tuesday, 8 May 1945, marking the official end of World War II in Europe in the Easte ...

, the Twelfth Army Group was a force that numbered over 1.3 million men.CSI REPORT No. 6, Larger units: Theater Army – Army Group – Field Army, Combat Studies Institute, U.S. Army Command and General Staff College, Fort Leavenworth, Kansas, January 198

/ref> Twelfth Army Group was disbanded on 12 July 1945 upon the departure of General Bradley to become Director of the

Veterans Administration The United States Department of Veterans Affairs (VA) is a Cabinet-level executive branch department of the federal government charged with providing life-long healthcare services to eligible military veterans at the 170 VA medical centers a ...

. Its subordinate elements then became directly subordinate to

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 (AFRICO ...

Order of Battle – 8 May 1945

12th Army Group – General Omar N. Bradley ** 1st Army

First Army – General Courtney H. Hodges *** 78th Infantry Division SSI

78th Infantry Division – Major General Edwin P. Parker Jr. *** US VII Corps SSI

VII Corps 7th Corps, Seventh Corps, or VII Corps may refer to: * VII Corps (Grande Armée), a corps of the Imperial French army during the Napoleonic Wars * VII Corps (German Empire), a unit of the Imperial German Army prior to and during World War I * VII ...

– Lieutenant General

J. Lawton Collins General (United States), General Joseph Lawton Collins (May 1, 1896 – September 12, 1987) was a senior United States Army officer. During World War II, he served in both the Asiatic-Pacific Theater, Pacific and European Theater of Operations, U ...

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9th Infantry Division – Major General

Louis A. Craig Louis A. Craig (July 29, 1891 – January 3, 1984) was a career officer in the United States Army. He attained the rank of Major general (United States), major general, and served in both World War I and World War II. Craig served as a corps ...

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9th Armored Division – Major General John W. Leonard **** US 69th Infantry Division

69th Infantry Division – Major General

Emil F. Reinhardt Major General Emil Fred Reinhardt (October 27, 1888 – July 24, 1969) was a senior United States Army officer. He is most noted during World War II as commander of the 69th Infantry Division, which became the first American unit to come into co ...

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104th Infantry Division – Major General

Terry de la Mesa Allen Sr. Major general (United States), Major General Terry de la Mesa Allen Sr. (April 1, 1888 – September 12, 1969) was a senior United States Army Officer (armed forces), officer who fought in both World War I and World War II. Allen was a decorated W ...

Third Army – General

George S. Patton, Jr. George Smith Patton Jr. (November 11, 1885 – December 21, 1945) was a General (United States), general in the United States Army who commanded the Seventh United States Army in the Mediterranean Theater of Operations, Mediterranean Theater ...

***

1st Infantry Division – Major General

Clift Andrus Major General Clift Andrus (October 12, 1890 – September 29, 1968) was a highly decorated senior officer of the United States Army. He is most noted for his service as a commander of 1st Infantry Division at the end of World War II. In militar ...

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2nd Infantry Division – Major General

Walter M. Robertson Major general (United States), Major General Walter Melville Robertson (June 15, 1888 – November 22, 1954) was a senior United States Army Officer (armed forces), officer. During World War II he received the second highest American military awa ...

***

70th Infantry Division – Major General Allison J. Barnett *** 97THID

97th Infantry Division – Brigadier General Milton B. Halsey *** 3 Corps Shoulder Sleeve Insignia

III Corps – Major General

James Van Fleet General James Alward Van Fleet (March 19, 1892 – September 23, 1992) was a United States Army officer who saw service during World War I, World War II and the Korean War. Van Fleet was a native of New Jersey, who was raised in Florida and gradu ...

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4th Infantry Division – Major General Harold W. Blakeley **** 14th US Armored Division SSI

14th Armored Division – Major General Albert C. Smith **** US 99th Infantry Division

99th Infantry Division The 99th Infantry Division was formed in 1942 and deployed overseas in 1944. The "Checkerboard" or "Battle Babies" division landed at the French port of Le Havre and proceeded northeast to Belgium. During the heavy fighting in the Battle of the ...

– Major General Walter E. Lauer *** V Corps

V Corps 5th Corps, Fifth Corps, or V Corps may refer to: France * 5th Army Corps (France) * V Cavalry Corps (Grande Armée), a cavalry unit of the Imperial French Army during the Napoleonic Wars * V Corps (Grande Armée), a unit of the Imperial French Ar ...

– Major General Clarence R. Huebner **** 16th US Armored Division SSI

16th Armored Division – Brigadier General John L. Pierce *** XII CORPS SSI

XII Corps 12th Corps, Twelfth Corps, or XII Corps may refer to: * 12th Army Corps (France) * XII Corps (Grande Armée), a corps of the Imperial French Army during the Napoleonic Wars * XII (1st Royal Saxon) Corps, a unit of the Imperial German Army * XII ...

– Major General Stafford LeRoy Irwin **** 4th US Armored Division SSI

4th Armored Division – Major General William M. Hoge **** US 5th Infantry Division

5th Infantry Division – Major General Albert E. Brown **** 11th US Armored Division SSI

11th Armored Division – Major General Holmes E. Dager **** Yankee Division

26th Infantry Division – Major General Willard S. Paul ****

90th Infantry Division 90th Division may refer to: ;Infantry * 90th Division (1st Formation)(People's Republic of China), 1949–1950 * 90th Division (2nd Formation)(People's Republic of China), 1950–1952 * 90th Light Infantry Division (Wehrmacht) * 90th Infantry Divi ...

– Major General Herbert L. Earnest *** XX Corps ssi

XX Corps – Major General Walton H. Walker **** 13th US Armored Division SSI

13th Armored Division – Major General

John Millikin Major General John Millikin (January 7, 1888 – November 6, 1970) was a senior United States Army officer who served in both World War I and World War II. During the latter, Millikin commanded III Corps in General George S. Patton's U.S. Third ...

****

65th Infantry Division – Major General Stanley E. Reinhart **** US 71st Infantry Division

71st Infantry Division – Major General Willard G. Wyman **** 80th Inf Div SSI SVG

80th Infantry Division – Major General

Horace L. McBride Lieutenant General Horace Logan McBride (June 29, 1894 – November 14, 1962) was a senior United States Army officer who fought during both World War I and World War II. He commanded American forces in the Ardennes (Battle of the Bulge), the Rhi ...

Ninth Army – Lieutenant General William H. Simpson *** United States Army 2nd Armored Division CSIB

2nd Armored Division – Major General Isaac D. White *** VIII CORPS SSI

VIII Corps 8th Corps, Eighth Corps, or VIII Corps may refer to: * VIII Corps (Grande Armée), a unit of the Imperial French army during the Napoleonic Wars * VIII Army Corps (German Confederation) * VIII Corps (German Empire), a unit of the Imperial German Ar ...

– Major General Troy H. Middleton **** 6th US Armored Division SSI

6th Armored Division The 6th Armored Division ("Super Sixth") was an armored division of the United States Army during World War II. It was formed with a cadre from the 2nd Armored Division. History The division was activated on 15 February 1942 at Fort Knox ...

– Major General

Robert W. Grow Major General Robert Walker Grow (February 14, 1895 – November 3, 1985) was a senior United States Army officer who commanded the 6th Armored Division during World War II. He was notable for his court-martial in 1951 for failing to safeguard c ...

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76th Infantry Division – Major General William R. Schmidt **** US 87th Infantry Division

87th Infantry Division – Major General Frank L. Culin Jr. **** 89th Regional Readiness Command SSI

89th Infantry Division – Major General Thomas D. Finley *** USA - XIII Corps

XIII Corps – Major General Alvan C. Gillem, Jr. **** 30th Infantry Division SSI

30th Infantry Division – Major General Leland S. Hobbs **** 35th Infantry Division SSI

35th Infantry Division – Major General Paul W. Baade **** 83rd Infantry Division SSI

83rd Infantry Division – Major General Robert C. Macon **** US 84th Infantry Division

84th Infantry Division – Major General

Alexander R. Bolling Alexander Russell Bolling (August 28, 1895 – June 4, 1964) was a lieutenant general in the United States Army during World War II and the Cold War. Military career Bolling was a student at the United States Naval Academy at Annapolis from 1915 ...

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102nd Infantry Division – Major General Frank A. Keating *** XVI Corps SSI

XVI Corps – Major General John B. Anderson **** 29th Infantry Division SSI

29th Infantry Division – Major General

Charles H. Gerhardt Major general (United States), Major General Charles Hunter Gerhardt (June 6, 1895 – October 9, 1976) was a senior United States Army Officer (armed forces), officer who fought in both World War I and World War II. During the latter, he commande ...

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75th Infantry Division – Major General Ray E. Porter **** 79th Infantry Division SSI

79th Infantry Division – Major General Ira T. Wyche **** 95TrainingDivSSI SVG

95th Infantry Division – Major General Harry L. Twaddle *** XIX Corps SSI

XIX Corps – Major General Raymond S. McLain **** 3rd US Armored Division SSI

3rd Armored Division – Brigadier General

Doyle O. Hickey Doyle Overton Hickey (July 27, 1892 – October 20, 1961) was an officer in the United States Army who served in World War I, World War II and the Korean War, finishing his military career as a Lieutenant general (United States), lieutenant gener ...

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8th Armored Division – Major General

John M. Devine John Matthew Devine (June 18, 1895 – March 8, 1971) was a highly decorated officer in the United States Army with the rank of major general. A graduate of the United States Military Academy, he is most noted as Commanding general, 8th Armored D ...

Fifteenth Army – Lieutenant General

Leonard T. Gerow Leonard Townsend Gerow (July 13, 1888 – October 12, 1972) was a general in the United States Army who served with distinction in both World War I and World War II. A 1911 graduate the Virginia Military Institute (VMI), Gerow served with the Uni ...

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66th Infantry Division shoulder sleeve insignia

66th Infantry Division – Major General Herman F. Kramer *** 106Infantry Division

106th Infantry Division – Major General Donald A. Stroh *** XVIII Airborne Corps CSIB

XVIII Airborne Corps The XVIII Airborne Corps is a corps of the United States Army that has been in existence since 1942 and saw extensive service during World War II. The corps is designed for rapid deployment anywhere in the world and is referred to as "America ...

– Major General Matthew B. Ridgway **** 5th US Armored Division SSI

5th Armored Division – Major General

Lunsford E. Oliver Major General Lunsford Errett Oliver (March 17, 1889 – October 13, 1978) was a senior United States Army officer, who commanded the 5th Armored Division during World War II. Early life and military career Lunsford Errett Oliver was born on ...

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7th Armored Division – Major General

Robert W. Hasbrouck Robert W. Hasbrouck (February 2, 1896 - August 19, 1985) was a career officer in the United States Army. He attained the rank of major general and was a recipient of numerous awards and decorations, including the Army Distinguished Service Medal, ...

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8th Infantry Division – Major General Bryant E. Moore **** 82nd Airborne Division CSIB

82nd Airborne Division The 82nd Airborne Division is an Airborne forces, airborne infantry division (military), division of the United States Army specializing in Paratrooper, parachute assault operations into denied areasSof, Eric"82nd Airborne Division" ''Spec Ops ...

– Major General James M. Gavin **** US 101st Airborne Division patch

101st Airborne Division The 101st Airborne Division (Air Assault) ("Screaming Eagles") is a light infantry division of the United States Army that specializes in air assault operations. It can plan, coordinate, and execute multiple battalion-size air assault operati ...

– Major General

William C. Lee Major General William Carey Lee (March 12, 1895 –June 25, 1948) was a senior United States Army officer who fought in World War I and World War II, during which he commanded the 101st Airborne Division, nicknamed the "Screaming Eagles". Lee is ...

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XXII Corps – Major General Ernest N. Harmon **** USA - 17 ABN DIV

17th Airborne Division – Major General

William M. Miley Major General William Maynadier "Bud" Miley (December 26, 1897 – September 24, 1997) was a senior United States Army officer and a professor of military science who fought in both World War I and World War II. During the latter, he was one of t ...

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94th Infantry Division – Major General

Harry J. Malony Major general (United States), Major General Harry James Malony (August 24, 1889 – March 23, 1971) was a decorated United States Army officer who, after seeing distinguished service overseas on the Western Front (World War I), Western Front dur ...

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XXIII Corps – Major General Hugh J. Gaffey **** 28th Infantry Division SSI (1918-2015)

28th Infantry Division – Major General Norman D. Cota Source: Bradley, Omar, ''A Soldier's Story'', New York: Henry Holt and Company (1950), pp. 557–561

References and notes

External links

Military situation maps produced by the Engineering Section of the 12th Army Group
– Library of Congress
Omar Nelson Bradley, Lt. General FUSAG 12TH AG
– Omar Bradley's D-Day June 6, 1944 Maps restored, preserved and displayed at Historical Registry {{Authority control 12 Military units and formations established in 1944 Military units and formations disestablished in 1945