The Guards Corps / GK () was a corps level command of the Prussian and then the Imperial German Armies from the 19th Century to World War I. The Corps was headquartered in Berlin, with its units garrisoned in the city and nearby towns (Potsdam, Jüterbog, Döberitz). Unlike all other Corps of the Imperial German Army, the Guards Corps did not recruit from a specific area, but from throughout Prussia and the "Imperial Lands" of Alsace-Lorraine. The Corps served in the Austro-Prussian War. During the Franco-Prussian War it was assigned to the 2nd Army.