An army group is a military organization consisting of several 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 organization handled by a single commander – usually a full general or field marshal – and it generally includes between 400,000 and 1,000,000 soldiers.
Fritz Theodor Carl von Below was a Prussian general in the German Army during the First World War. He commanded troops during the Battle of the Somme, the Second Battle of the Aisne, and the German spring offensive in 1918.
Max Karl Wilhelm von Gallwitz was a German general from Breslau (Wrocław), Silesia, who served with distinction during World War I on both the Eastern and Western Fronts.
Otto Ernst Vinzent Leo von Below served as a Prussian general officer in the Imperial German Army during the First World War (1914–1918). He arguably became most notable for his command, along with the Austro-Hungarian commander Svetozar Borojević, during the victorious Battle of Caporetto in October–November 1917.
Operation Alberich was the code name of a German military operation in France during the First World War. Two salients had been formed during the Battle of the Somme in 1916 between Arras and Saint-Quentin and from Saint-Quentin to Noyon. Alberich was planned as a strategic withdrawal to new positions on the shorter and more easily defended Hindenburg Line.
The 1st Army was an army level command of the German Army in World War I. It was formed on mobilization in August 1914 from the VIII Army Inspectorate. The army was dissolved on 17 September 1915, but reformed on 19 July 1916 during the Battle of the Somme. It was finally disbanded in 1919 during demobilization after the war.
The 2nd Army was an army level command of the German Army in World War I. It was formed on mobilization in August 1914 from the III Army Inspection. The army was disbanded in 1919 during demobilization after the war.
The 5th Army was an army level command of the German Army in World War I. It was formed on mobilization in August 1914 seemingly from the VII Army Inspection. The army was disbanded in 1919 during demobilization after the war.
The 6th Army was an army level command of the German Army in World War I. It was formed on mobilization in August 1914 from the IV Army Inspectorate. The army was disbanded in 1919 during demobilization after the war.
The 11th Army was an army level command of the German Army in World War I. It was formed in March 1915 in Kassel originally to serve on the Western Front but was transported to Galicia for service on the Eastern Front. The army was dissolved on 8 September 1915, but reformed on 23 September 1915 for the Serbian Campaign. It was finally dissolved on 7 January 1919.
The 12th Army was an army level command of the German Army in World War I formed in August 1915 by the redesignation of Armee-Gruppe Gallwitz. It served exclusively on the Eastern Front and was dissolved on 9 October 1916 when its commander, General der Infanterie Max von Fabeck, was transferred to 8th Army.
The Guards Reserve Corps was a corps level command of the German Army in World War I.
Hermann Josef von Kuhl was a Prussian military officer, member of the German General Staff, and a Generalleutnant during World War I. One of the most competent commanders in the German Army, he retired in 1919 to write a number of critically acclaimed essays on the war. Hermann von Kuhl is one of only three recipients to be distinguished with both the "military class" and "peace class" of the Pour le Mérite, Prussia's and Germany's highest honor.
The leaders of the Central Powers of World War I were the political or military figures who commanded or supported the Central Powers.
The Army Group Mackensen which operated in Serbia between 18 September 1915 and 11 October 1916 during World War I under the command of field marshal Mackensen, was an Army Group of the German Army.
It was renamed on 11 October 1916 to Army Group Below and on 23 April 1917 to Army Group Scholtz, according to its new commander.
The Army Group Boehn was an Army Group of the German Army, which operated on the Western Front under command of Max von Boehn, between 12 August 1918 and 8 October 1918 during World War I.
Army Group Gallwitz, or Army Group C, was an Army Group of the Imperial German Army during World War I. Commanded by Max von Gallwitz, it operated on the Western Front between 1 February and 11 November 1918.
The Army Group Duke Albrecht or Army Group D was an Army Group of the German Army, which operated on the Western Front under command of Albrecht, Duke of Württemberg, between 7 March 1917 and 11 November 1918 during World War I.
The Army Group German Crown Prince or Army Group B was an Army Group of the German Army, which operated on the Western Front under command of Wilhelm, German Crown Prince, between 1 August 1915 and 11 November 1918 during World War I.
The Army Group Hindenburg was an Army Group of the German Army, which operated in the Baltics against Russia between 5 August 1915 and 30 July 1916 during World War I, under command of Ober Ost Paul von Hindenburg.
German Empire 