21st Field Artillery Regiment Battalions
Modern Era, United States, Field Artillery
This page collects the existing battalion illustrations and additional documented historical battalions of the 21st Field Artillery Regiment. The historical entries include inactive units and earlier designations; the regimental image identifies entries without a battalion-specific illustration.
1st Battalion, 21st Field Artillery Regiment
This card isolates the 1st Battalion symbol inside the regiment's five-battalion set. Use the direct battalion link below to open the stand-alone reference page for this battalion.
2d Battalion, 21st Field Artillery Regiment
This card isolates the 2d Battalion symbol inside the regiment's five-battalion set. Use the direct battalion link below to open the stand-alone reference page for this battalion.
3d Battalion, 21st Field Artillery Regiment
This card isolates the 3d Battalion symbol inside the regiment's five-battalion set. Use the direct battalion link below to open the stand-alone reference page for this battalion.
4th Battalion, 21st Field Artillery Regiment
This card isolates the 4th Battalion symbol inside the regiment's five-battalion set. Use the direct battalion link below to open the stand-alone reference page for this battalion.
5th Battalion, 21st Field Artillery Regiment
This card isolates the 5th Battalion symbol inside the regiment's five-battalion set. Use the direct battalion link below to open the stand-alone reference page for this battalion.
6th Battalion, 21st Field Artillery Regiment
The 6th Battalion, 21st Artillery, was activated at Fort Carson with the 5th Infantry Division on 19 February 1962. It transferred to the 4th Infantry Division on 15 December 1970.
The battalion received its field artillery designation on 1 September 1971. It was inactivated at Fort Carson on 13 September 1972 and relieved from assignment to the 4th Infantry Division. Army lineage history, Part 1, PDF page 722.
Research note: The added historical entries cite their sources individually. Regimental illustrations are labeled as such. An earlier battalion designation can continue through another battalion or a separate battery; these relationships are identified in the entries. These additions follow Janice E. McKenney, Field Artillery (U.S. Army Center of Military History, 2010), Parts 1 and 2. The published lineages principally cover developments through 2003; they are not a current order of battle. The original five symbol cards retain their links to individual reference pages.