 In the ensuing clash, elements of the German 257th "Volksgrenadier" and 905th Infantry Training Divisions were forced to retreat northward in fighting dominated by the forested terrain.The adjustment meant that the Siegfried Line assault by the four American divisions of the VI Corps was to be concentrated in a zone less than wide.Since the German XC "Korps" had only the remnants of two "volksgrenadier" divisions and an infantry training division to defend against both Americans and French, a breakthrough of the fortifications was but a matter of time.