XII (Royal Saxon) Reserve Corps
Military unit
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The XII (Royal Saxon) Reserve Corps (German: XII. (Königlich Sächsisches) Reserve-Korps / XII RK) was a corps level command of the German Army in World War I.
Kingdom of Saxony / 
German Empire| XII (Royal Saxon) Reserve Corps XII. (Königlich Sächsisches) Reserve-Korps | |
|---|---|
Flag of the Staff of a Generalkommando (1871–1918) | |
| Active | 2 August 1914–1919 |
| Country | Kingdom of Saxony / German Empire |
| Type | Corps |
| Size | Approximately 38,000 (on formation) |
| Engagements | World War I |
Formation
XII Reserve Corps was formed on the outbreak of the war in August 1914[1] as part of the mobilisation of the Army. It was initially commanded by General der Artillerie Hans von Kirchbach, recalled from retirement.[2] It was still in existence at the end of the war[3] in Armee-Abteilung C, Heeresgruppe Gallwitz on the Western Front.[4]
Structure on formation
On formation in August 1914, XII Reserve Corps consisted of two divisions, made up of reserve units. In general, Reserve Corps and Reserve Divisions were weaker than their active counterparts
- Reserve Infantry Regiments did not always have three battalions nor necessarily contain a machine gun company[5]
- Reserve Jäger Battalions did not have a machine gun company on formation[6]
- Reserve Cavalry Regiments consisted of just three squadrons[7]
- Reserve Field Artillery Regiments usually consisted of two abteilungen of three batteries each, though the Reserve Field Artillery Regiments of XII Corps had three abteilungen[8]
- Corps Troops generally consisted of a Telephone Detachment and four sections of munition columns and trains [9]
In summary, XII Reserve Corps mobilised with 26 infantry battalions, 6 machine gun companies (36 machine guns), 6 cavalry squadrons, 18 field artillery batteries (108 guns) and 3 pioneer companies.
24th Reserve Division was formed by units drawn from the XIX Corps District.[10]
| Corps | Division | Brigade | Units |
|---|---|---|---|
| XII (Royal Saxon) Reserve Corps[11] | 23rd Reserve Division | 45th Reserve Infantry Brigade | 100th Reserve Infantry Regiment |
| 101st Reserve Infantry Regiment | |||
| 12th Reserve Jäger Battalion | |||
| 46th Reserve Infantry Brigade | 102nd Reserve Infantry Regiment[12] | ||
| 103rd Reserve Infantry Regiment | |||
| Saxon Reserve Hussar Regiment | |||
| 23rd Reserve Field Artillery Regiment[13] | |||
| 4th Company, 12th Pioneer Battalion | |||
| 23rd Reserve Divisional Pontoon Train | |||
| 1st Saxon Reserve Medical Company | |||
| 24th Reserve Division | 47th Reserve Infantry Brigade | 104th Reserve Infantry Regiment | |
| 106th Reserve Infantry Regiment | |||
| 13th Reserve Jäger Battalion | |||
| 48th Reserve Infantry Brigade | 107th Reserve Infantry Regiment | ||
| 133rd Reserve Infantry Regiment[14] | |||
| Saxon Reserve Uhlan Regiment | |||
| 24th Reserve Field Artillery Regiment[15] | |||
| 1st Reserve Company, 12th Pioneer Battalion | |||
| 2nd Reserve Company, 12th Pioneer Battalion | |||
| 2nd Saxon Reserve Medical Company | |||
| Corps Troops | 12th Reserve Telephone Detachment | ||
| Munition Trains and Columns corresponding to the III Reserve Corps |
Combat chronicle
On mobilisation, XII Reserve Corps was assigned to the predominantly Saxon 3rd Army on the right wing of the forces that invaded France as part of the Schlieffen Plan offensive in August 1914.
Commanders
XII Reserve Corps had the following commanders during its existence:[16][17]
| From | Rank | Name |
|---|---|---|
| 2 August 1914 | General der Artillerie | Hans von Kirchbach |
| 15 December 1917 | General der Infanterie | Horst Edler von der Planitz |
| 24 July 1918 | Generalleutnant | Max Leuthold |
