1(GE/NL)Corps is a multinational formation consisting of units from both the Royal Dutch Army and German Army. The corps headquarters also takes part in NATO Response Force readiness rotations. The Corps' headquarters are situated in Münster (Westphalia), formerly the headquarters of the German Army's I. Corps out of which 1 German/Netherlands Corps evolved. The corps has national and multinational operational responsibilities, and its commanding officer is the only one in Europe to have OPCON in peacetime.