Formations of the United States Army

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This is a list of historical formations of the United States Army. Units still in existence are in bold.

For specific eras:

Army groups[edit]

Field armies[edit]

Army corps[edit]

Airborne, armored, and infantry are grouped separately. The numbering system for the airborne corps is a continuation of the infantry numbering system.

Airborne corps[edit]

Armored corps[edit]

Army corps[edit]

Army divisions[edit]

Air assault divisions[edit]

Airborne divisions[edit]

Armored divisions[edit]

Cavalry divisions[edit]

Infantry divisions[edit]

Light divisions[edit]

Mountain divisions[edit]

Reserve training divisions[edit]

See also[edit]