The Army Group Mackensen (german: Heeresgruppe Mackensen, HGr. Mackensen) which operated in Poland between 22 April 1915 and 8 September 1915 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 ...

under the command of Field Marshal , was an army group of the Imperial German Army. On 8 September 1915 it was renamed Army Group when became its new commander. In June 1916, the Army Group faced the Brusilov Offensive. After an initial retreat, it checked the Russian advance at the Battle of Kowel. After the signing of the

Treaty of Brest-Litovsk The Treaty of Brest-Litovsk (also known as the Treaty of Brest in Russia) was a separate peace treaty signed on 3 March 1918 between Russia and the Central Powers (Germany, Austria-Hungary, Bulgaria, and the Ottoman Empire), that ended Russia's ...

in March 1918, the Army Group occupied

Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian inv ...

. On 31 March 1918, was replaced by and the Army Group was renamed Army Group -Kiev (german: Heeresgruppe Eichhorn-Kiew). It was again renamed on 3 April to Army Group and a last time on 13 August to Army Group Kiev after the murder of General . His successor was . The Army Group was disbanded on 7 February 1919.

Composition April – September 1915

* German Eleventh Army () * Austro-Hungarian Fourth Army (

Archduke Joseph Ferdinand of Austria , spouse =Rosa KaltenbrunnerGertrude Tomanek von Beyerfels-Mondsee , issue =Claudia von Habsburg-Lothringen Maximilian von Habsburg-Lothringen , house = Habsburg-Lorraine , father = Ferdinand IV, Grand Duke of Tuscany , m ...

) * Austro-Hungarian Second Army (), from June 1915 * German

Army of the Bug The Army of the Bug (german: Bugarmee / Armeeoberkommando Bug / A.O.K. Bug) was an army level command of the German Army in World War I named for the Bug River. It was formed against Russia on 8 July 1915 and served exclusively on the Eastern ...

(

Alexander von Linsingen Alexander Adolf August Karl von Linsingen (10 February 1850 – 5 June 1935) was a German general during World War I. Military service Linsingen joined the Prussian Army in 1868 and rose to Corps Commander ( II Corps) in 1909. He was one of th ...

), from 8 July 1915

Composition September 1915 – March 1918

* Austro-Hungarian Fourth Army (Archduke Joseph Ferdinand of Austria, succeeded by ) * German Bug Army ()

Sources

* * on Genealogy.de {{WWI-stub Mackensen Mackensen Poland Military units and formations established in 1915 Military units and formations disestablished in 1919