This is the order of battle for the American Expeditionary Force

American Expeditionary Force

The American Expeditionary Forces or AEF were the United States Armed Forces sent to Europe in World War I. During the United States campaigns in World War I the AEF fought in France alongside British and French allied forces in the last year of the war, against Imperial German forces...

 at the beginning and end of the Meuse-Argonne Offensive

Meuse-Argonne Offensive

The Meuse-Argonne Offensive, or Maas-Argonne Offensive, also called the Battle of the Argonne Forest, was a part of the final Allied offensive of World War I that stretched along the entire western front.-Overview:...

, September 26 to November 11, 1918.

First U.S. Army 

General John J. Pershing

John J. Pershing

John Joseph "Black Jack" Pershing, GCB , was a general officer in the United States Army who led the American Expeditionary Forces in World War I...

, Commanding

I Corps
Major General Hunter Liggett

Hunter Liggett

Hunter Liggett was a lieutenant general of the United States Army. His forty-two years of service spanned the period from the Indian campaigns to trench warfare.-Biography:...

, Commanding

28th Division

35th Division

77th Division

92nd Division

III Corps
Major General Robert L. Bullard, Commanding

3rd Division

4th Division

33rd Division

80th Division

V Corps
Major General George H. Cameron, Commanding

32nd Division

37th Division

70th Division

91st Division

In Reserve

1st Division

29th Division

82nd Division

First U.S. Army

Lieutenant General Hunter Liggett

Hunter Liggett

Hunter Liggett was a lieutenant general of the United States Army. His forty-two years of service spanned the period from the Indian campaigns to trench warfare.-Biography:...

, Commanding

I Corps
Major General Joseph T. Dickman

Joseph T. Dickman

Joseph Theodore Dickman was born in Dayton, Ohio. He attended the University of Dayton and graduated in the class of 1871. In 1881 he graduated from the U.S...

, Commanding

42nd Division

77th Division

78th Division
III Corps
Major General John L. Hines

John L. Hines

John Leonard Hines was an American soldier who served as Chief of Staff of the U.S. Army from 1924 to 1926.-Biography:...

, Commanding

3rd Division

5th Division

32nd Division

90th Division

V Corps
Major General Charles P. Summerall, Commanding

1st Division

2nd Division

29th Division

80th Division

89th Division

Second U.S. Army 

Lieutenant General Robert L. Bullard, Commanding

IV Corps

IV Corps (United States)

The IV Corps replaced the VI Corps in the Fifth United States Army's order of battle in Italy after Allied forces liberated Rome in the summer of 1944 when VI Corps was withdrawn to take part in Operation Dragoon, the Allied invasion of southern France. Initially the Corps had two divisions, U.S...

Major General Charles H. Muir, Commanding

4th Division

28th Division

37th Division

VI Corps
Major General Charles C. Ballou, Commanding
(Note: With the exception of one brigade from the 88th Division, VI Corps did not actively participate in the battle.)

7th Division

88th Division

92nd Division

French II Colonial Corps

French Division

French Division

26th Division

26th Infantry Division (United States)

The 26th Infantry Division was an infantry division of the United States Army. As a major formation of the Massachusetts Army National Guard, it was based in Boston, Massachusetts for most of its history...

79th Division

French XVII Corps

French Division

French Division

33rd Division

35th Division

List of divisions engaged

At one point or another during the 47-day battle, all or part of 22 American divisions were engaged in the fighting:

1st Division

2nd Division

3rd Division

4th Division

5th Division

26th Division

28th Division

29th Division

32nd Division

33rd Division

35th Division

37th Division

42nd Division

77th Division

78th Division

79th Division

80th Division

82nd Division

88th Division

89th Division

90th Division

91st Division