III Corps (German Empire)

III Army Corps III. Armee-Korps
Flag of the Staff of a Generalkommando (1871–1918)
Active	1813 (1813)–1919 (1919)
Country	Prussia /  German Empire
Type	Corps
Size	Approximately 44,000 (on mobilisation in 1914)
Garrison/HQ	Berlin/Genthiner Straße 2
Shoulder strap piping	Red
Engagements	Second Schleswig War Battle of Dybbøl Austro-Prussian War Battle of Königgrätz Franco-Prussian War Battle of Spicheren Battle of Mars-la-Tour Battle of Gravelotte Battle of Beaune-la-Rolande Second Battle of Orléans (1870) Battle of Le Mans Siege of Metz World War I Battle of the Frontiers Battle of Mons First Battle of the Marne Battle of Verdun Battle of Amiens (1918)
Commanders
Notable commanders	Friedrich Graf von Wrangel (1849–1857) Karl von Bülow (1903–1912)

The III Army Corps / III AK (German: III. Armee-Korps) was a corps level command of the Prussian and then the Imperial German Armies from the 19th century to World War I.

It was established in 1814 as the General Headquarters in Berlin (Generalkommando in Berlin) and became the III Army Corps on 3 April 1820. Its headquarters was in Berlin and its catchment area was the Province of Brandenburg.^[1]

In peacetime, the Corps was assigned to the IV Army Inspectorate, joining the 1st Army at the start of the First World War.^[2] It was still in existence at the end of the war^[3] in the 7th Army, Heeresgruppe Deutscher Kronprinz on the Western Front.^[4] The Corps was disbanded with the demobilisation of the German Army after World War I.