| XXI Army Corps XXI. Armee-Korps | |
|---|---|
 Flag of the Staff of a Generalkommando (1871–1918) | |
| Active | 1 October 1912–1919 |
| Country |  German Empire |
| Branch | Army |
| Type | Corps |
| Size | Approximately 44,000 (on mobilisation in 1914) |
| Garrison/HQ | Saarbrücken/Landgericht, Hindenburgstraße |
| Shoulder strap piping | Light Green |
| Engagements | World War I |
| Insignia | |
| Abbreviation | XXI AK |
The XXI Army Corps / XXI AK (German: XXI. Armee-Korps) was a corps level command of the German Army, before and during World War I.
As the German Army expanded in the latter part of the 19th century and early part of the 20th century, the XXI Army Corps was set up on 1 October 1912 in Saarbrücken as the Generalkommando (headquarters) for the districts of Koblenz, Trier and part of Alsace-Lorraine.[1] It took over command of 31st Division from XV Corps and the newly formed 42nd Division (the last division to be formed by the peacetime army). General der Infanterie Fritz von Below, former commander of 1st Guards Division, took command.[2]
It was assigned to the VII Army Inspectorate.[3] but joined the predominantly Bavarian 6th Army at the start of the First World War. It was still in existence at the end of the war[4] in the 5th Army, Heeresgruppe Gallwitz on the Western Front.[5]
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Transcription
Peacetime organisation
The 25 peacetime Corps of the German Army (Guards, I - XXI, I - III Bavarian) had a reasonably standardised organisation. Each consisted of two divisions with usually two infantry brigades, one field artillery brigade and a cavalry brigade each.[6] Each brigade normally consisted of two regiments of the appropriate type, so each Corps normally commanded 8 infantry, 4 field artillery and 4 cavalry regiments. There were exceptions to this rule:
- V, VI, VII, IX and XIV Corps each had a 5th infantry brigade (so 10 infantry regiments)
- II, XIII, XVIII and XXI had a 9th infantry regiment
- I, VI and XVI Corps had a 3rd cavalry brigade (so 6 cavalry regiments)
- the Guards Corps had 11 infantry regiments (in 5 brigades) and 8 cavalry regiments (in 4 brigades).[7]
Each Corps also directly controlled a number of other units. This could include one or more
| Corps | Division | Brigade | Units | Garrison |
|---|---|---|---|---|
| XXI Corps | 31st Division | 32nd Infantry Brigade | 70th (8th Rhenish) Infantry | Saarbrücken |
| 174th (10th Lotharingian) Infantry | Forbach | |||
| 62nd Infantry Brigade | 60th (7th Brandenburg) Infantry "Margrave Charles" | Weißenburg | ||
| 137th (2nd Lower Alsatian) Infantry | Hagenau | |||
| 166th (Hessen-Homburg) Infantry | Bitsch | |||
| 31st Field Artillery Brigade | 31st (1st Lower Alsatian) Field Artillery | Hagenau | ||
| 67th (2nd Lower Alsatian) Field Artillery | Hagenau, Bischweiler | |||
| 31st Cavalry Brigade | 7th (Westphalian) Dragoons | Saarbrücken | ||
| 7th (Rhenish) Uhlans "Archduke Frederick of Baden" | Saarbrücken | |||
| 42nd Division | 59th Infantry Brigade | 97th (1st Upper Rhenish) Infantry | Saarburg | |
| 138th (3rd Lower Alsatian) Infantry | Dieuze | |||
| 65th Infantry Brigade | 17th (4th Westphalian) Infantry "Count Barfuss" | Mörchingen | ||
| 131st (2nd Lotharingian) Infantry | Mörchingen | |||
| 42nd Field Artillery Brigade | 8th (1st Rhenish) Field Artillery "von Holtzendorff"[9] | Saarbrücken | ||
| 15th (1st Upper Alsatian) Field Artillery[10] | Saarburg, Mörchingen | |||
| 42nd Cavalry Brigade | 11th (2nd Brandenburg) Uhlans "Count Haeseler" | Saarburg | ||
| 15th (Schleswig-Holstein) Uhlans | Saarburg | |||
| Corps Troops | 3rd Machine Gun Abteilung | Saarburg | ||
| 27th (2nd Rhenish) Pioneer Battalion | Trier | |||
| 21st (2nd Rhenish) Train Battalion | Forbach | |||
| Saarbrücken Defence Command (Landwehr-Inspektion) |
Saarbrücken |
World War I
Organisation on mobilisation
On mobilization on 2 August 1914 the Corps was restructured. 42nd Cavalry Brigade was withdrawn to form part of the 7th Cavalry Division[11] and the 31st Cavalry Brigade was broken up and its regiments assigned to the divisions as reconnaissance units. Divisions received engineer companies and other support units from the Corps headquarters. Unusually, the Corps retained its 9th infantry regiment on mobilisation. In summary, XXI Corps mobilised with 27 infantry battalions, 9 machine gun companies (54 machine guns), 8 cavalry squadrons, 24 field artillery batteries (144 guns), 4 heavy artillery batteries (16 guns), 3 pioneer companies, and an aviation detachment.
| Corps | Division | Brigade | Units |
|---|---|---|---|
| XXI Corps | 31st Division | 32nd Infantry Brigade | 70th Infantry Regiment |
| 174th Infantry Regiment | |||
| 62nd Infantry Brigade | 60th Infantry Regiment | ||
| 137th Infantry Regiment | |||
| 166th Infantry Regiment | |||
| 31st Field Artillery Brigade | 31st Field Artillery Regiment | ||
| 67th Field Artillery Regiment | |||
| 7th Uhlan Regiment | |||
| 1st Company, 27th Pioneer Battalion | |||
| 31st Divisional Pontoon Train | |||
| 1st Medical Company | |||
| 42nd Division | 59th Infantry Brigade | 97th Infantry Regiment | |
| 138th Infantry Regiment | |||
| 65th Infantry Brigade | 17th Infantry Regiment | ||
| 131st Infantry Regiment | |||
| 42nd Field Artillery Brigade | 8th Field Artillery Regiment | ||
| 15th Field Artillery Regiment | |||
| 7th Dragoon Regiment | |||
| 2nd Company, 27th Pioneer Battalion | |||
| 3rd Company, 27th Pioneer Battalion | |||
| 42nd Divisional Pontoon Train | |||
| 2nd Medical Company | |||
| 3rd Medical Company | |||
| Corps Troops | II Battalion, 3rd Foot Artillery Regiment[13] | ||
| 8th Aviation Detachment | |||
| 21st Corps Pontoon Train | |||
| 21st Telephone Detachment | |||
| 27th Pioneer Searchlight Section | |||
| Munition Trains and Columns corresponding to II Corps |
Combat chronicle
On mobilisation, XXI Corps was assigned to the predominantly Bavarian 6th Army forming part of the left wing of the forces for the Schlieffen Plan offensive in August 1914 on the Western Front. By 1915 it was on the Eastern Front where it took part in the siege of Kovno and the battles on the Neman River and at Vilnius. It was still in existence at the end of the war[14] in the 5th Army, Heeresgruppe Gallwitz on the Western Front.[15]
Commanders
The XXI Corps had the following commanders during its existence:[16][17]
| Dates | Rank | Name |
|---|---|---|
| 1 October 1912 to 4 April 1915 | General der Infanterie | Fritz von Below |
| 4 April 1915 to 2 January 1917 | Generalleutnant | Oskar von Hutier |
| 2 January 1917 to end of war | Generalleutnant | Ernst von Oven |
See also
- German Army order of battle (1914)
- German Army order of battle, Western Front (1918)
- List of Imperial German infantry regiments
- List of Imperial German artillery regiments
- List of Imperial German cavalry regiments
References
- ^ German Administrative History Accessed: 9 April 2012
- ^ "The Prussian Machine". Archived from the original on 4 December 2013. Retrieved 9 April 2012.
- ^ Cron 2002, p. 395
- ^ Cron 2002, pp. 88–89
- ^ Ellis & Cox 1993, pp. 186–187
- ^ Haythornthwaite 1996, pp. 193–194
- ^ They formed the Guards Cavalry Division, the only peacetime cavalry division in the German Army.
- ^ War Office 1918, p. 260
- ^ Had a third (Horse Artillery) Abteilung of three batteries of 4 guns.
- ^ Had a third (Horse Artillery) Abteilung of three batteries of 4 guns.
- ^ Cron 2002, p. 300
- ^ Cron 2002, pp. 317–318
- ^ 4 heavy artillery batteries (16 heavy field howitzers)
- ^ Cron 2002, pp. 88–89
- ^ Ellis & Cox 1993, pp. 186–187
- ^ German Administrative History Accessed: 9 April 2012
- ^ German War History Accessed: 9 April 2012
Bibliography
- Cron, Hermann (2002). Imperial German Army 1914-18: Organisation, Structure, Orders-of-Battle [first published: 1937]. Helion & Co. ISBN 1-874622-70-1.
- Ellis, John; Cox, Michael (1993). The World War I Databook. Aurum Press Ltd. ISBN 1-85410-766-6.
- Haythornthwaite, Philip J. (1996). The World War One Source Book. Arms and Armour. ISBN 1-85409-351-7.
- Histories of Two Hundred and Fifty-One Divisions of the German Army which Participated in the War (1914-1918), compiled from records of Intelligence section of the General Staff, American Expeditionary Forces, at General Headquarters, Chaumont, France 1919. The London Stamp Exchange Ltd (1989). 1920. ISBN 0-948130-87-3.
- The German Forces in the Field; 7th Revision, 11th November 1918; Compiled by the General Staff, War Office. Imperial War Museum, London and The Battery Press, Inc (1995). 1918. ISBN 1-870423-95-X.
This page was last edited on 11 February 2024, at 14:18