IX Corps (German Empire)

The IX Army Corps / IX AK () was a corps level command of the Prussian and Armies before and during the First World War.

IX Corps was one of three formed in the aftermath of the Austro-Prussian War (the others being X Corps and XI Corps). The Corps was formed in October 1866 with headquarters in Altona. The catchment area included the newly annexed Province of Schleswig-Holstein, the Grand Duchies of Mecklenburg-Schwerin and Mecklenburg-Strelitz and the Hanseatic cities of Lübeck, Hamburg and Bremen.German Administrative History Accessed: 22 May 2012

During the Franco-Prussian War IX Corps was assigned to the 2nd Army. The Corps was assigned to the III Army Inspectorate but joined the 1st Army at the start of the First World War. It was still in existence at the end of the war. The Corps was disbanded with the demobilisation of the German Army after the First World War.

Franco-Prussian War During the Franco-Prussian War, the corps formed part of the 2nd Army. The 17th Division was initially part of the reserve of the Prussian Army, the 18th Division was joined by the Grand Ducal Hessian (25th) Division. The Corps participated in the battles of Gravelotte, Orléans and Le Mans.

Flags of the Line Infantry regiments Due to the large number of Line Infantry regiments then in existence, on 18 December 1890, Kaiser Wilhelm II ordered that the flag colours were to be the same as that of the uniform epaulettes. This was to ensure that each corps attained uniformity. IX and X Corps wore white epaulettes. Notwithstanding this, the flags of the Jäger Battalions would be green.

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. 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 Corps 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).They formed the Guards Cavalry Division, the only peacetime cavalry division in the German Army. Each Corps also directly controlled a number of other units. This could include one or more Foot Artillery Regiment Jäger Battalion Pioneer Battalion Train Battalion

+Peacetime organization of the Corps Corps Division Brigade Units Garrison IX Corps 17th Division 33rd Infantry Brigade 75th (1st Hanseatic)(Bremen) InfantryBremen, III Bn at Stade 76th (2nd Hanseatic)(Hamburg) InfantryHamburg 34th Infantry Brigade 89th (Grand Ducal Mecklenburgian) GrenadiersSchwerin, II Bn at Neustrelitz 90th (Grand Ducal Mecklenburgian) Fusiliers "Emperor William"Rostock, II Bn at Wismar 81st Infantry Brigade 162nd (3rd Hanseatic)(Lübeck) InfantryLübeck, II Bn at Eutin 163rd (Schleswig-Holstein) InfantryNeumünster, III Bn at Heide 17th Field Artillery Brigade 24th (Holstein) Field ArtilleryGüstrow, Neustrelitz 60th (Grand Ducal Mecklenburgian) Field ArtillerySchwerin 17th Cavalry Brigade 17th (1st Grand Ducal Mecklenburgian) DragoonsLudwigslust 18th (2nd Grand Ducal Mecklenburgian) DragoonsParchim 18th Division 35th Infantry Brigade 84th (Schleswig) Infantry "von Manstein"Schleswig, Hadersleben 86th (Schleswig-Holstein) Fusiliers "Queen"Flensburg, III Bn at Sonderburg 36th Infantry Brigade 31st (1st Thuringian) Infantry "Count Bose"Altona 85th (Holstein) Infantry "Duke of Holstein"Rendsburg, III Bn at Kiel 18th Field Artillery Brigade 9th (Schleswig) Field Artillery "General Field Marshal Graf Waldersee"Itzehoe 45th (Lauenburg) Field ArtilleryAltona, Rendsburg 18th Cavalry Brigade 15th (Hannover) Hussars "Queen Wilhelmina of the Netherlands"Wandsbek 16th (Schleswig-Holstein) Hussars "Emperor Francis Joseph of Austria, King of Hungary"Schleswig Corps Troops 9th (Lauenburg) Jäger Battalion Ratzeburg 20th (Lauenburg) Foot ArtilleryAltona 9th (Schleswig-Holstein) Pioneer BattalionHarburg 9th (Schleswig-Holstein) Train BattalionRendsburg Altona Defence Command(Landwehr-Inspektion)Altona

World War I Organisation on mobilisation On mobilization on 2 August 1914 the Corps was restructured. 17th and 18th Cavalry Brigades were withdrawn to form part of the 4th Cavalry Division. The 16th Dragoons, formerly of the X Corps, was raised to a strength of 6 squadrons before being split into two half-regiments of 3 squadrons each. The half-regiments were assigned as divisional cavalry to 17th Division and the 18th Division. The 81st Infantry Brigade was transferred to 17th Reserve Division in IX Reserve Corps. Divisions received engineer companies and other support units from the Corps headquarters. In summary, IX Corps mobilised with 25 infantry battalions, 9 machine gun companies (54 machine guns), 6 cavalry squadrons, 24 field artillery batteries (144 guns), 4 heavy artillery batteries (16 guns), 3 pioneer companies and an aviation detachment.

+Initial wartime organization of the Corps Corps Division Brigade Units IX Corps 17th Division 33rd Infantry Brigade 75th Infantry Regiment 76th Infantry Regiment 34th Infantry Brigade 89th Grenadier Regiment 90th Fusilier Regiment 9th Jäger Battalion 17th Field Artillery Brigade 24th Field Artillery Regiment 60th Field Artillery Regiment staff and half of 16th Dragoon Regiment 1st Company, 9th Pioneer Battalion 17th Divisional Pontoon Train 1st Medical Company 3rd Medical Company 18th Division 35th Infantry Brigade 84th Infantry Regiment 86th Fusilier Regiment 36th Infantry Brigade 31st Infantry Regiment 85th Infantry Regiment 18th Field Artillery Brigade 9th Field Artillery Regiment 45th Field Artillery Regiment half of 16th Dragoon Regiment 2nd Company, 9th Pioneer Battalion 3rd Company, 9th Pioneer Battalion 18th Divisional Pontoon Train 2nd Medical Company Corps Troops I Battalion, 20th Foot Artillery Regiment 11th Aviation Detachment 9th Corps Pontoon Train 9th Telephone Detachment 9th Pioneer Searchlight Section Munition Trains and Columns corresponding to II Corps

Combat chronicle On mobilisation, IX Corps was assigned to the 1st Army on the right wing of the forces for the Schlieffen Plan offensive in August 1914 on the Western Front. It participated in the Battle of Mons and the First Battle of the Marne which marked the end of the German advances in 1914. Later it saw action in the Battle of Pozières and Battle of Amiens (1918).

It was still in existence at the end of the war.

Commanders The IX Corps had the following commanders during its existence:German Administrative History Accessed: 22 May 2012German War History Accessed: 22 May 2012The Prussian Machine Accessed: 22 May 2012

From Rank Name 30 October 1866 General der Infanterie Edwin Freiherr von Manteuffel 26 January 1867 General der Infanterie Albrecht Gustav von Manstein 23 September 1873 General der Infanterie Hermann von Tresckow 2 August 1888 General der Infanterie Paul von Leszczynski 2 February 1891 General der Kavallerie Alfred Graf von Waldersee 5 April 1898 General der Kavallerie Robert von Massow 29 October 1903 Generalleutnant Friedrich von Bock und Polach 21 May 1907 General der Kavallerie Hermann Freiherr von Vietinghoff genannt Scheel 12 April 1910 General der Infanterie Karl Freiherr von Plettenberg 1 March 1913 General der Infanterie Ferdinand von Quast 24 January 1917 Generalleutnant Horst Ritter und Edler von Oetinger

IX Corps (German Empire)

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