21st Field Artillery
Lineage/DateLine
"They Have Advanced"




The Army did not begin a formal program for determining lineage and honors until the 1920s. Before that time, considerable confusion existed within the Army about the accepted procedures and methods for determining the prior history of units and their entitlement to battle honors. With the demobilization of the Army following World War I, many distinguished units were lost from the rolls. To avert such problems in the future, the Historical Section of the Army War College assumed responsibility for maintaining historical information about Army units: thus lineage work began.

Today the Force Structure and Unit History Branch continues the work begun by the Historical Section of the Army War College. The branch maintains historical information on active and inactive units in all components - Regular Army, Army Reserve, and Army National Guard, and prepares official Lineage and Honors Certificates. On the basis of research in primary and secondary material, the certificates outline the major organizational changes undergone by the unit and provide a list of the official battle honors (campaign credit and decorations) that the unit has earned. The information contained on the certificates is reformatted for publication in the Army Lineage Series

While it would take a book to recount the rich history brought about by the changes of each unit in the 21st Field Artillery Regiment, an overall look at the major reorganizational elements of the Brigades Lineage presents a picture of an organization that was accustomed to fighting and brought strength from change.



21st Field Artillery Regiment
Lineage

01 July 1916; Constituted in the Regular Army of the United States as the 21st Field Artillery.

01 June 1917; Organized at Camp Wilson, Texas.

12 December 1917: 21st Field Artillery assigned to the 5th Division.

04 November 1920; 21st Field Artillery relieved from assignment to the 5th Division.

23 November 1921; 21st Field Artillery inactivated at Camp Bragg, North Carolina.

24 March 1923; 21st Field Artillery assigned to the 9th Division.

01 January 1930; 21st Field Artillery relieved from assignment to the 9th Division and assigned to the 5th Division. (Later redesigneted as the 5th Infantry Division).

06 October 1939; Activated at Fort Knox, Kentucky.

01 October 1940; Reorganized and redesignated as 21st Field Artillery Battalion.

20 September 1946; Inactivated (less "B" and "C" Batteries) at Ladd Field, Alaska. "B" and "C" Batteries concurrently inactivated atr Camp Campbell, Kentucky.

03 June 1948; Activated at Fort Jackson, South Carolina.

30 April 1950; Inactivated at Fort Jackson, South Carolina.

01 March 1951; Activated at Indiantown Gap Military Pennsylvania.

01 September 1953; Inactivated at Indiantown Gap Military Pennsylvania.

25 May 1954; Activated at Augsburg, Germany.

01 June 1957; Relieved from assignment to the 5th Infantry Division; concurrently reorganized and redesignated as the 21st Artillery, a parent regiment under the Combat Arms Regimental Ststem.

01 September 1971; Redesigneted as the 21st Field Artillery.

Withdrawn 16 March 1987 from the Combat Arms Regimental System and reorganized under the United States Army Regimental System.

Redesignated 1 October 2005 as the 21st Field Artillery Regiment.


Needs Data

1st Battalion, 21st Field Artillery
"1st Strike"
Lineage

01 July 1916; Constituted in the Regular Army of the United States as "A" Battery, 21st Field Artillery.

01 June 1917; Organized at Camp Wilson, Texas.

12 December 1917: 21st Field Artillery assigned to the 5th Division.

04 November 1920; 21st Field Artillery relieved from assignment to the 5th Division.

23 November 1921; 21st Field Artillery inactivated at Camp Bragg, North Carolina.

24 March 1923; 21st Field Artillery assigned to the 9th Division.

01 January 1930; 21st Field Artillery relieved from assignment to the 9th Division and assigned to the 5th Division. (Later redesigneted as the 5th Infantry Division).

06 October 1939; Activated at Fort Knox, Kentucky.

01 October 1940; Reorganized and redesignated as "A" Battery, 21st Field Artillery Battalion.

20 September 1946; Inactivated at Ladd Field, Alaska.

03 June 1948; Activated at Fort Jackson, South Carolina.

30 April 1950; Inactivated at Fort Jackson, South Carolina.

01 March 1951; Activated at Indiantown Gap Military Pennsylvania.

01 September 1953; Inactivated at Indiantown Gap Military Pennsylvania.

25 May 1954; Activated at Augsburg, Germany.

01 June 1957; Inactivated and relieved from assignment to the 5th Infantry Division; concurrently redesignated as Headquarters and Headquarters Battery, 1st Battalion, 21st Artillery.

01 July 1960; Redesignated as Headquarters and Headquarters Battery, 1st Howitzer Battalion, 21st Artillery, assigned to the 1st Cavalry Division and activated in Korea. (Organic elements concurrently constituted and activated.)

01 September 1963; Redesigneted as 1st Battalion, 21st Artillery.

01 September 1971; Redesigneted as 1st Battalion, 21st Field Artillery.

13 September 1972; Relieved from assignment to the 1st Cavalry Division and assigned to the 4th Infantry Division.

19 December 1973; Inactivated at Fort Carson, Colorado.

21 April 1975; Relieved from assignment to the 4th Infantry Division, assigned to the 1st Cavalry Division and activated at Fort Hood, Texas.

Headquarters and Headquarters Battery, 1st Battalion, 21st Field Artillery, reorganized and redesignated 02 July 1986 as Battery "A", 21st Field Artillery (remainder of battalion concurrently inactivated).

Reorganized and redesignated 16 September 1997 as Headquarters and Service Battery, 1st Battalion, 21st Field Artillery (organic elements concurrently activated)

Redesignated 01 October 2005 as the 1st Battalion, 21st Field Artillery Regiment.


Needs Data




The history of the 21st Field Artillery recorded the following significant events occurring on the dates listed.



21st Field Artillery Regiment
DateLine

1916
21st Field Artillery constituted in the Regular Army of the United States. (01 July)

1916
Constituted in the Regular Army of the United States as "A" Battery 21st Field Artillery. (01 July)

1917
21st Field Artillery organized at Camp Wilson, Texas. (01 June)

1917
"A" Battery, 21st Field Artillery organized at Camp Wilson, Texas. (01 June)

1917
21st Field Artillery assigned to the 5th Division. (12 December)

1920
21st Field Artillery relieved from assignment to the 5th Division. (04 November)

1921
21st Field Artillery inactivated at Camp Bragg, North Carolina. (23 November)

1923
21st Field Artillery assigned to the 9th Division. (24 March)

1930
21st Field Artillery relieved from assignment to the 9th Division and assigned to the 5th Division. (Later redesigneted as the 5th Infantry Division). (01 January)

1939
21st Field Artillery activated at Fort Knox, Kentucky. (06 October)

1940
21st Field Artillery reorganized and redesignated as 21st Field Artillery Battalion. (01 October)

1940
21st Field Artillery reorganized and redesignated as "A" Battery, 21st Field Artillery Battalion. (01 October)

1946
21st Field Artillery inactivated (less "B" and "C" Batteries) at Ladd Field, Alaska. "B" and "C" Batteries concurrently inactivated at Camp Campbell, Kentucky. (20 September)

1946
"A" Battery, 21st Field Artillery Battalion inactivated at Ladd Field, Alaska. (20 September)

1948
21st Field Artillery activated at Fort Jackson, South Carolina. (03 June)

1948
"A" Battery, 21st Field Artillery Battalion activated at Fort Jackson, South Carolina. (03 June)

1950
21st Field Artillery inactivated at Fort Jackson, South Carolina. (30 April)

1950
"A" Battery, 21st Field Artillery Battalion inactivated at Fort Jackson, South Carolina. (30 April)

1951
21st Field Artillery activated at Indiantown Gap Military Pennsylvania. (01 March)

1951
"A" Battery, 21st Field Artillery Battalion activated at Indiantown Gap Military Pennsylvania. (01 March)

1953
21st Field Artillery inactivated at Indiantown Gap Military Pennsylvania. (01 September)

1953
"A" Battery, 21st Field Artillery Battalion inactivated at Indiantown Gap Military Pennsylvania. (01 September)

1954
21st Field Artillery activated at Augsburg, Germany. (25 May)

1954
"A" Battery, 21st Field Artillery Battalion activated at Augsburg, Germany. (25 May)

1957
21st Field Artillery relieved from assignment to the 5th Infantry Division; concurrently reorganized and redesignated as the 21st Artillery, a parent regiment under the Combat Arms Regimental Ststem. (01 June)

1957
"A" Battery, 21st Field Artillery Battalion inactivated and relieved from assignment to the 5th Infantry Division; concurrently redesignated as Headquarters and Headquarters Battery, 1st Battalion, 21st Artillery. (01 June)

1960
Headquarters and Headquarters Battery, 1st Battalion, 21st Artillery redesignated as Headquarters and Headquarters Battery, 1st Howitzer Battalion, 21st Artillery, assigned to the 1st Cavalry Division and activated in Korea. (Organic elements concurrently constituted and activated.) (01 July)

1963
Headquarters and Headquarters Battery, 1st Howitzer Battalion, 21st Artillery redesigneted as 1st Battalion, 21st Artillery. (01 September)

1970
"First in Cambodia" (01 May)

1971
21st Field Artillery redesigneted as the 21st Field Artillery. (01 September)

1971
1st Battalion, 21st Artillery redesigneted as 1st Battalion, 21st Field Artillery. (01 September)

1972
1st Battalion, 21st Field Artillery relieved from assignment to the 1st Cavalry Division and assigned to the 4th Infantry Division. (13 September)

1973
1st Battalion, 21st Field Artillery inactivated at Fort Carson, Colorado. (19 December)

1975
1st Battalion, 21st Field Artillery relieved from assignment to the 4th Infantry Division, assigned to the 1st Cavalry Division and activated at Fort Hood, Texas. (21 April)

1991
"Operation Red Storm" (18 February)
"Operation Knight Strike" (19 February)
"Operation Quick Strike" (24 February)


Needs Data





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Copyright © 1996, Cavalry Outpost Publications ® and Trooper Wm. H. Boudreau, "F" Troop, 8th Cavalry Regiment (1946 - 1947). All rights to this body of work are reserved and are not in the public domain, or as noted in the bibliography. Reproduction, or transfer by electronic means, of the History of the 1st Cavalry Division, the subordinate units or any internal element, is not permitted without prior authorization. Readers are encouraged to link to any of the pages of this Web site, provided that proper acknowledgment attributing to the source of the data is made. The information or content of the material contained herein is subject to change without notice.

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