21st Cavalry Division (United States)
| 21st Cavalry Division | |
|---|---|
Shoulder Sleeve Insignia | |
| Active | 1921–1940 |
| Country | United States |
| Branch | National Guard |
| Type | Cavalry Division |
| U.S. Cavalry Divisions | ||||
|
The United States Army's 21st Cavalry Division was a cavalry division of the National Guard with units located primarily in the northeastern United States. The division was created from the perceived need for additional cavalry units after the First World War. It numbered in succession of the Regular Army divisions, which were not all active at its creation.