Battle plans were soon made and, on 19 January, the 28th went into action on the northwestern section of the pocket in the Kaysersberg Valley supporting the beleaguered 3rd Infantry Division, which had been holding there since late November 1944. Despite the bitterly cold conditions, the Allies prevailed. German intelligence knew nothing about the 10th and 28th presence in their sector until they attacked. The 28th advanced westward and pressed steadily toward the city of Colmar. In less than 10 days they reduced the pocket by half and the German Fuhrer, Adolf Hitler, who almost always refused to retreat, gave the order in the early morning of 29 January for a partial retreat of his troops in the northern sector of the pocket. By 2 February, the 28th had cleared Colmar's surrounding areas and the French 5th Armored Division led the way into the town. On 9 February, the final organized German troops in Alsace were pushed back across the Rhine.