Field Armies

• First United States Army
• Second United States Army
• Third United States Army

Motor transport Corps

• The Motor Transport Corps of the United States Army during World War 1

Army corps

• I Corps
• II Corps
• III Corps
• 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States Army's order of battle in Italy after Allied forces liberated Rome in the summer of 1944 when VI Corps was withdrawn to take part in Operation Dragoon, the Allied invasion of southern France.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...
  
  
• V Corps
• VI Corps
• VII Corps
• VIII Corps
  VIII Corps (United States)
  The U.S. VIII Corps was a corps of the United States Army that saw service during various times over a fifty-year period during the twentieth century. The VIII Corps was organized 26–29 November 1918 in the Regular Army in France and demobilized on 20 April 1919. The VIII Corps was soon...
  
  
• IX Corps

Infantry Divisions

• 1st Division ("The Big Red One")
• 2nd Division ("Indian Head Division"; "Warrior Division")
• 3rd Division ("Rock of the Marne")
• 4th Division ("Ivy Division")
• 5th Division ("Red Devils"; "Red Diamond")
• 6th Division ("Red Star")
• 7th Division ("Bayonet Division"; "Lightfighters")
• 8th Division ("Golden Arrow Division"; "Pathfinder Division")
• 9th Division
• 10th Division
• 11th Division
• 12th Division
• 13th Division ("Lucky 13th")
• 14th Division (United States)
• 15th Division
• 16th Division
• 17th Division
• 18th Division
• 19th Division
• 20th Division
  20th Division (United States)
  There have been two 20th Divisions in the history of the United States Army.In early 1917, the 20th Division was established as a National Guard formation consisting of units of the Idaho, Montana, Oregon, Washington, and Wyoming Army National Guards...
  
  
• 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...
  
  
• 27th Division
• 28th Division
• 29th Division
• 30th Division
• 31st Division
• 32nd Division
• 33rd Division
• 34th Division
• 35th Division
• 36th Division
• 37th Division
• 38th Division
• 40th Division
• 41st Division
• 42nd Division ("Rainbow Division")
• 76th Division ("Liberty Bell Division"; "Onaway Division")
• 77th Division ("Statue of Liberty Division")
• 78th Division ("Lightning Division")
• 79th Division ("Cross of Lorraine Division")
• 80th Division ("Blue Ridge Division")
• 81st Division ("Wildcat Division")
• 82nd Division ("All-Americans")
• 83rd Division ("Thunderbolt Division"; "Ohio Division")
• 84th Division ("Railsplitters")
• 85th Division ("Custer Division")
• 86th Division ("Blackhawk Division")
• 87th Division ("Golden Acorn Division")
• 88th Division ( Fighting Blue Devils"; "Clover Leaf Division")
• 89th Division ("Rolling W")
• 90th Division ("Tough 'Ombres")
• 91st Division ("Pine Tree Division"; "Wild West Division")
• 92nd Division (Colored) ("Buffalo Soldiers")
• 93d Division (Colored) ("Blue Helmets")
• 95th Division
• 96th Division
• 97th Division
• 98th Division
• 99th Division
• 100th Division
• 101st Division
  101st Airborne Division (United States)
  The 101st Airborne Division—the "Screaming Eagles"—is a U.S. Army modular light infantry division trained for air assault operations. During World War II, it was renowned for its role in Operation Overlord, the D-Day landings on 6 June 1944, in Normandy, France, Operation Market Garden, the...
  
  
• 102nd Division