In its advance, Rohrbach-lès-Bitche and towns surrounding Bettviller were liberated by 12 December 1944, and Utweiler, Germany was seized on 21 December. After a short period of rehabilitation and maintenance, the 12th rolled against the Rhine bridgehead at Herrlisheim that the Germans had established as part of their Operation Nordwind offensive. In order to seal the Battle of the Bulge, units of the Seventh Army were diverted north to assist the Third Army in capturing Bastogne. Due to this, the remainder of the Seventh Army, including the 12th Armored Division, was stretched thin holding a long front line with only eight divisions.