The battalion crossed the Saar outside Dillingen on 10 December, where a force of infantry from the 90th Division had established a hard-pressed bridgehead. It supported the push into the town on 15 December, but with the German offensive in the Ardennes the bridgehead was evacuated, and the 90th Division established defensive positions on the west bank. On 6 January it was ordered north to Luxembourg, on the southern flank of the German salient, and entered combat on the 9th.