# X Reserve Corps (German Empire)

The X Reserve Corps (German: X. Reserve-Korps / X RK) was a corps level command of the German Army in World War I.

## Formation

X Reserve Corps was formed on the outbreak of the war in August 1914 as part of the mobilisation of the Army. It was initially commanded by General der Infanterie Günther Graf von Kirchbach, formerly President of the Military Tribunal. It was still in existence at the end of the war in the 4th Army, Heeresgruppe Kronprinz Rupprecht on the Western Front.

### Structure on formation

On formation in August 1914, X 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
    Reserve Jäger Battalions did not have a machine gun company on formation
    Reserve Cavalry Regiments consisted of just three squadrons
    Reserve Field Artillery Regiments usually consisted of two abteilungen of three batteries each
    Corps Troops generally consisted of a Telephone Detachment and four sections of munition columns and trains
In summary, X Reserve Corps mobilised with 25 infantry battalions, 9 machine gun companies (54 machine guns), 6 cavalry squadrons, 12 field artillery batteries (72 guns) and 3 pioneer companies.
Despite its name, 2nd Guards Reserve Division was not formed by units drawn predominantly from the Guards Corps but from II Corps District (divisional cavalry), VII Corps District (26th Reserve Infantry Brigade) and X Corps District (38th Reserve Infantry Brigade, field artillery regiment and pioneers).
| Corps | Division | Brigade | Units |
| X Reserve Corps | 2nd Guards Reserve Division | 26th Reserve Infantry Brigade | 15th Reserve Infantry Regiment |
| X Reserve Corps | 2nd Guards Reserve Division | 26th Reserve Infantry Brigade | 55th Reserve Infantry Regiment |
| X Reserve Corps | 2nd Guards Reserve Division | 38th Reserve Infantry Brigade | 77th Reserve Infantry Regiment |
| X Reserve Corps | 2nd Guards Reserve Division | 38th Reserve Infantry Brigade | 91st Reserve Infantry Regiment |
| X Reserve Corps | 2nd Guards Reserve Division | 38th Reserve Infantry Brigade | 10th Reserve Jäger Battalion |
| X Reserve Corps | 2nd Guards Reserve Division | | 2nd Reserve Uhlan Regiment |
| X Reserve Corps | 2nd Guards Reserve Division | | 20th Reserve Field Artillery Regiment |
| X Reserve Corps | 2nd Guards Reserve Division | | 4th Company, 10th Pioneer Battalion |
| X Reserve Corps | 2nd Guards Reserve Division | | 2nd Guards Reserve Divisional Pontoon Train |
| X Reserve Corps | 2nd Guards Reserve Division | | 2nd Guards Reserve Medical Company |
| X Reserve Corps | 19th Reserve Division | 37th Reserve Infantry Brigade | 73rd Reserve Infantry Regiment |
| X Reserve Corps | 19th Reserve Division | 37th Reserve Infantry Brigade | 78th Reserve Infantry Regiment |
| X Reserve Corps | 19th Reserve Division | 39th Reserve Infantry Brigade | 74th Reserve Infantry Regiment |
| X Reserve Corps | 19th Reserve Division | 39th Reserve Infantry Brigade | 92nd Reserve Infantry Regiment |
| X Reserve Corps | 19th Reserve Division | 39th Reserve Infantry Brigade | III Battalion, 79th Reserve Infantry Regiment |
| X Reserve Corps | 19th Reserve Division | | 6th Reserve Dragoon Regiment |
| X Reserve Corps | 19th Reserve Division | | 19th Reserve Field Artillery Regiment |
| X Reserve Corps | 19th Reserve Division | | 1st Reserve Company, 10th Pioneer Battalion |
| X Reserve Corps | 19th Reserve Division | | 2nd Reserve Company, 10th Pioneer Battalion |
| X Reserve Corps | 19th Reserve Division | | 19th Reserve Divisional Pontoon Train |
| X Reserve Corps | 19th Reserve Division | | 10th Reserve Medical Company |
| X Reserve Corps | Corps Troops | | 10th Reserve Telephone Detachment |
| X Reserve Corps | Corps Troops | | Munition Trains and Columns corresponding to the III Reserve Corps |

## Combat chronicle

On mobilisation, X Reserve Corps was assigned to the 2nd Army as part of the right wing of the forces that invaded France and Belgium as part of the Schlieffen Plan offensive in August 1914.

## Commanders

X Reserve Corps had the following commanders during its existence:
| From | Rank | Name |
| 2 August 1914 | General der Infanterie | Günther Graf von Kirchbach |
| 30 August 1914 | General der Infanterie | Johannes von Eben |
| 11 June 1915 | Generalleutnant | Robert Kosch |
| 18 August 1916 | General der Infanterie | Robert Kosch |
| 28 August 1916 | Generalleutnant | Georg Fuchs |
| 15 October 1916 | General der Infanterie | Magnus von Eberhardt |
| 6 August 1918 | Generalleutnant | Arthur von Gabain |