11. Armee 11th Army
Flag of the Staff of an Armee Oberkommando (1871–1918)
Active	9 March 1915 – 8 September 1915 23 September 1915 – 7 January 1919
Country	German Empire
Type	Army
Engagements	World War I Eastern Front Balkans Serbian Campaign Salonika front
Insignia
Abbreviation	A.O.K. 11

The11th Army (German:11. Armee / Armeeoberkommando 11 / A.O.K. 11) was anarmy level command of theGerman Army inWorld War I. It was formed in March 1915 inKassel originally to serve on theWestern Front but was transported toGalicia for service on theEastern Front. The army was dissolved on 8 September 1915,^[1] but reformed on 23 September 1915 for theSerbian Campaign. It was finally dissolved on 7 January 1919.^[2]

The 11th Army was formed in early 1915. It briefly fought on the Western Front during theBattle of Ypres, holding the line against the Allied attack. On 22 April, it was transferred and placed with the Austrian 4th Army under Mackensen's command, behind the Gorlice–Tarnow gap, south of theVistula River. In July 1915, the 11th Army advanced into Russian territory in a general German offensive. The 11th Army was dissolved on 8 September 1915.

On 23 September 1915 a new 11th Army was created for theSerbian Campaign under command ofMax von Gallwitz. It was composed of theIII Corps, theIV Reserve Corps and theX Reserve Corps.After the retreat of Serbian army, the 11th Army remained on theSalonika front in support of the Bulgarian Army. During its time on the front the army gradually became more and more composed of Bulgarian divisions. By the time of theVardar Offensive in September 1918, The 11th German Army consisted almost fully of Bulgarian soldiers commanded by German officers.^[3]

The headquarters of the Army was situated inVeles on 31 January 1916, moved toPrilep on 5 October 1916 until the retreat to Hungary in September 1918.

11th Army had the following commanders until absorbed byHeeresgruppe Mackensen on 8 September 1915:^[4]

The "new" 11th Army had the following commanders:^[4]

• Armee-Abteilung or Army Detachment in the sense of "something detached from an Army". It is not under the command of an Army so is in itself a small Army.^[6]
• Armee-Gruppe or Army Group in the sense of a group within an Army and under its command, generally formed as a temporary measure for a specific task.
• Heeresgruppe orArmy Group in the sense of a number of armies under a single commander.

• 11th Army (Wehrmacht) for the equivalent formation inWorld War II

• Cron, Hermann (2002) [1937].Imperial German Army 1914–18: Organisation, Structure, Orders-of-Battle. Helion & Co.ISBN 1-874622-70-1.
• DiNardo, Richard L. (2015).Invasion: The Conquest of Serbia, 1915. Santa Barbara: Praeger.
• Ellis, John; Cox, Michael (1993).The World War I Databook. Aurum Press.ISBN 1-85410-766-6.
• Korsun, Nikolay (1939).Балканский фронт мировой войны 1914–1918 гг [Balkan Front of the World War 1914–1918] (in Russian). Moscow: Boenizdat.OCLC 7970969.

• Field armies of Germany in World War I
• Military units and formations established in 1915
• Military units and formations disestablished in 1919

• Use British English from July 2014
• All Wikipedia articles written in British English
• Use dmy dates from August 2024
• Articles with short description
• Short description matches Wikidata
• Articles containing German-language text
• CS1 Russian-language sources (ru)