The IX Army Corps / IX AK (german: IX. Armee-Korps) was a

corps Corps (; plural ''corps'' ; from French , from the Latin "body") is a term used for several different kinds of organization. A military innovation by Napoleon I, the formation was first named as such in 1805. The size of a corps varies great ...

level command of the

Prussia Prussia, , Old Prussian: ''Prūsa'' or ''Prūsija'' was a German state on the southeast coast of the Baltic Sea. It formed the German Empire under Prussian rule when it united the German states in 1871. It was ''de facto'' dissolved by an em ...

n and

German German(s) may refer to: * Germany (of or related to) ** Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...

Armies An army (from Old French ''armee'', itself derived from the Latin verb ''armāre'', meaning "to arm", and related to the Latin noun ''arma'', meaning "arms" or "weapons"), ground force or land force is a fighting force that fights primarily on ...

before and during

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

. IX Corps was one of three formed in the aftermath of the

Austro-Prussian War The Austro-Prussian War, also by many variant names such as Seven Weeks' War, German Civil War, Brothers War or Fraternal War, known in Germany as ("German War"), (; "German war of brothers") and by a variety of other names, was fought in 186 ...

(the others being

X Corps 10th Corps, Tenth Corps, or X Corps may refer to: France * 10th Army Corps (France) * X Corps (Grande Armée), a unit of the Imperial French Army during the Napoleonic Wars Germany * X Corps (German Empire), a unit of the Imperial German Army * ...

and

XI Corps 11 Corps, 11th Corps, Eleventh Corps, or XI Corps may refer to: * 11th Army Corps (France) * XI Corps (Grande Armée), a unit of the Imperial French Army during the Napoleonic Wars * XI Corps (German Empire), a unit of the Imperial German Army * ...

). The Corps was formed in October 1866 with headquarters in Altona. The catchment area included the newly annexed

Province of Schleswig-Holstein The Province of Schleswig-Holstein (german: Provinz Schleswig-Holstein ) was a province of the Kingdom of Prussia (subsequently the Free State of Prussia after 1918) from 1868 to 1946. History It was created from the Duchies of Schleswig and H ...

, the Grand Duchies of

Mecklenburg-Schwerin The Duchy of Mecklenburg-Schwerin was a duchy in northern Germany created in 1701, when Frederick William and Adolphus Frederick II divided the Duchy of Mecklenburg between Schwerin and Strelitz. Ruled by the successors of the Nikloting Hous ...

and

Mecklenburg-Strelitz The Duchy of Mecklenburg-Strelitz was a duchy in northern Germany consisting of the eastern fifth of the historic Mecklenburg region, roughly corresponding with the present-day Mecklenburg-Strelitz district (the former Lordship of Stargard), ...

and the

Hanseatic The Hanseatic League (; gml, Hanse, , ; german: label=German language, Modern German, Deutsche Hanse) was a Middle Ages, medieval commercial and defensive confederation of merchant guilds and market towns in Central Europe, Central and Norther ...

cities of

Lübeck Lübeck (; Low German also ), officially the Hanseatic City of Lübeck (german: Hansestadt Lübeck), is a city in Northern Germany. With around 217,000 inhabitants, Lübeck is the second-largest city on the German Baltic coast and in the stat ...

Hamburg (male), (female) en, Hamburger(s), Hamburgian(s) , timezone1 = Central (CET) , utc_offset1 = +1 , timezone1_DST = Central (CEST) , utc_offset1_DST = +2 , postal ...

and

Bremen Bremen (Low German also: ''Breem'' or ''Bräm''), officially the City Municipality of Bremen (german: Stadtgemeinde Bremen, ), is the capital of the German state Free Hanseatic City of Bremen (''Freie Hansestadt Bremen''), a two-city-state consis ...

. During the Franco-Prussian War it 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 World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

. It was still in existence at the end of the war. The Corps was disbanded with the demobilisation of the German Army after

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, so the 18th Division was joined by the Grand Ducal Hessian (25th) Division. The Corps participated in the battles of

Gravelotte Gravelotte (; german: Gravelotte) is a commune in the Moselle department in Grand Est in north-eastern France, 11 km west of Metz. It is part of the functional area (''aire d'attraction'') of Metz. Its population is 827 (2019). From 1871 ...

Orléans Orléans (;"Orleans"
(US) and Le Mans Le Mans (, ) is a city in northwestern France on the Sarthe River where it meets the Huisne. Traditionally the capital of the province of Maine, it is now the capital of the Sarthe department and the seat of the Roman Catholic diocese of Le Man ...

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 Wilhelm II (Friedrich Wilhelm Viktor Albert; 27 January 18594 June 1941) was the last German Emperor (german: Kaiser) and List of monarchs of Prussia, King of Prussia, reigning from 15 June 1888 until Abdication of Wilhelm II, his abdication on 9 ...

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

wore white epaulettes. Notwithstanding this, the flags of the Jäger Battalions would be green.

Peacetime organisation

The 25 peacetime

Corps Corps (; plural ''corps'' ; from French , from the Latin "body") is a term used for several different kinds of organization. A military innovation by Napoleon I, the formation was first named as such in 1805. The size of a corps varies great ...

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 VII or vii may refer to: the Roman numeral 7 Art and entertainment * The Vii, a video game console * vii, leading-tone triad, see diminished triad * ''VII'' (Blitzen Trapper album) * ''VII'' (Just-Ice album) * ''VII'' (Teyana Taylor album) * ...

, IX and

XIV Corps 14 Corps, 14th Corps, Fourteenth Corps, or XIV Corps may refer to: * XIV Corps (Grande Armée), a unit of the Imperial French Army during the Napoleonic Wars * XIV Corps (German Empire), a unit of the Imperial German Army prior to and during World ...

each had a 5th infantry brigade (so 10 infantry regiments) : II,

XIII XIII may refer to: * 13 (number) or XIII in Roman numerals * 13th century in Roman numerals * XIII (comics), ''XIII'' (comics), a Belgian comic book series by Jean Van Hamme and William Vance ** XIII (2003 video game), ''XIII'' (2003 video game), a ...

, 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). Each Corps also directly controlled a number of other units. This could include one or more :Foot Artillery Regiment : Jäger Battalion :

Pioneer Pioneer commonly refers to a settler who migrates to previously uninhabited or sparsely inhabited land. In the United States pioneer commonly refers to an American pioneer, a person in American history who migrated west to join in settling and de ...

Battalion :

Train In rail transport, a train (from Old French , from Latin , "to pull, to draw") is a series of connected vehicles that run along a railway track and Passenger train, transport people or Rail freight transport, freight. Trains are typically pul ...

Battalion

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

, 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 and 18th Divisions. 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.

Combat chronicle

On mobilisation, IX Corps was assigned to the 1st Army on the right wing of the forces for the

Schlieffen Plan The Schlieffen Plan (german: Schlieffen-Plan, ) is a name given after the First World War to German war plans, due to the influence of Field Marshal Alfred von Schlieffen and his thinking on an invasion of France and Belgium, which began on 4 ...

offensive in August 1914 on the Western Front. It participated in the

Battle of Mons A battle is an occurrence of combat in warfare between opposing military units of any number or size. A war usually consists of multiple battles. In general, a battle is a military engagement that is well defined in duration, area, and force ...

and the

First Battle of the Marne The First Battle of the Marne was a battle of the First World War fought from 5 to 12 September 1914. It was fought in a collection of skirmishes around the Marne River Valley. It resulted in an Entente victory against the German armies in the ...

which marked the end of the German advances in 1914. Later it saw action in the Battle of Pozières and

Battle of Amiens (1918) The Battle of Amiens, also known as the Third Battle of Picardy (french: 3ème Bataille de Picardie), was the opening phase of the Allied offensive which began on 8 August 1918, later known as the Hundred Days Offensive, that ultimately led t ...

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

Commanders

The IX Corps had the following commanders during its existence:The Prussian Machine
Accessed: 22 May 2012

References

Bibliography

* * * * * {{DEFAULTSORT:9th Corps (German Empire) Corps of Germany in World War I Military units and formations established in 1866 Military units and formations disestablished in 1919