In early October 1944 , the corps was pulled back from the front line for rest and refit in Westfalen . Refitting was complete by early December , and it was ordered to the Ardennes region to join Sepp Dietrich 's Sixth SS Panzer Army , in preparation for an offensive codenamed '' Wacht Am Rhein '' , and the ensuing Battle of the Bulge . The corps played a major role in the battle with '' Kampfgruppe Peiper '' of the Leibstandarte forming a mobile spearhead . After several weeks heavy fighting with severely limited fuel supplies , and heavy Allied air attacks , the corps was exhausted . The offensive had to be called off . '' Kampfgruppe Peiper '' became infamous during the battle for the murder of U.S. prisoners of war in what became known as the Malmedy massacre . In the wake of the defeat , the corps along with the remainder of Dietrich 's Army , was moved to Hungary
Malmedy massacre
Malmedy massacre
I SS Panzer Corps