The unit was made active again on 10 September 1921, at Milwaukee, Wisconsin. They were assigned to the United States Army Reserve. At this time the "Screaming Eagle" nickname became associated with the division. They assumed several traditions as a successor to the volunteer regiments of the American Civil War. In order to reorganize the 101st as an airborne division in the (regular) U.S. Army, the reserve division was disbanded on 15 August 1942.