The Army Group Mackensen () which operated in Poland between 22 April 1915 and 8 September 1915 during

World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...

under the command of Field Marshal , was an

army group An army group is a military organization consisting of several field army, field armies, which is self-sufficient for indefinite periods. It is usually responsible for a particular geographic area. An army group is the largest field organizatio ...

of the

Imperial German Army The Imperial German Army (1871–1919), officially referred to as the German Army (), was the unified ground and air force of the German Empire. It was established in 1871 with the political unification of Germany under the leadership of Kingdom o ...

. 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 The Battle of Kowel (also known as the Battle of Kovel or the Battle of Kovel-Stanislav) took place during World War I, from 28 July to 8 August 1916. It began with an Austria-Hungary, Austrian counter-attack by Alexander von Linsingen south of ...

. After the signing of the

Treaty of Brest-Litovsk The Treaty of Brest-Litovsk was a separate peace treaty signed on 3 March 1918 between Soviet Russia and the Central Powers (Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria), by which Russia withdrew from World War I. The treaty, whi ...

in March 1918, the Army Group occupied

Ukraine Ukraine is a country in Eastern Europe. It is the List of European countries by area, second-largest country in Europe after Russia, which Russia–Ukraine border, borders it to the east and northeast. Ukraine also borders Belarus to the nor ...

. On 31 March 1918, was replaced by and the Army Group was renamed Army Group -Kiev (). 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 Archduke Joseph Ferdinand of Austria, full name ''Joseph Ferdinand Salvator Maria Franz Leopold Anton Albert Johann Baptist Karl Ludwig Rupert Maria Auxilatrix''; 24 May 1872 – 28 August 1942, was an Austro-Hungarian Archduke, military commande ...

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

Army of the Bug The Army of the 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 Front. It was dissolved on 31 March 1918. History T ...

(

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 (German Empire), II Corps) ...

), 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