 Complete the following phrase:  Other than the distant fall of shells on the AlbertBapaume road, all was quiet along the front line when at 07:00, an intense German artillery bombardment fell on the whole of the area of the 4th Division, including rear areas as far as Congreves headquarters in Montigny-sur-lHallue. Although it initially fell only lightly along most of the front line, in the brigade rear area the shelling was, according to Leane, the heaviest since 