Fourth Army launched the Allied Hundred Days Offensive on 8 August with the Battle of Amiens. The battered divisions of III Corps only had modest objectives, but despite excellent artillery support and CB fire they still made little progress, so on 10 August part of its front including 51st Bde was transferred to Australian Corps. During August and September Fourth Army continued advancing, with a series of successful attacks at Albert, Bapaume, Épehy, and the St Quentin Canal, all with massive artillery support. By mid-October the front had reverted to a war of movement, with a great deal of forest fighting in which the 60-pdrs were used to 'search' roads, tracks and clearings in the woods.