10 August – 3 September During the night of 10 August, parties of the
4th Australian Division of the
I Anzac Corps, attacked towards the farm and managed to establish advanced posts in the valley south of the farm and to the east. Attacks were then made from a foothold in (Fabeck Trench) to the north-east and to deepen the salient near the farm. By 22 August, the
2nd Australian Division had made several more attempts on the farm and realised that the main defensive position was underground, where the Germans had excavated the cellars to create linked dug-outs. On 3 September, the 4th Australian Division attacked again with the
13th Brigade and captured much of the surface remains of the farm and trenches nearby, with hand-to-hand fighting in the ruins and underground. German counter-attacks repulsed the Australians except from a small part of , the fighting costing the Australians
16–26 September During the battle, the divisions of I Anzac Corps advanced north-west along Pozières ridge, towards Mouquet Farm, with
British divisions supporting on the left. The approaches to the farm were watched by German artillery observers, who directed artillery-fire on the attackers from three sides of the salient that had developed in the lines. Many casualties were caused to the attackers as they approached the farm; in August and into September, the Australians were repulsed three times. The
Canadian Corps relieved the I Anzac Corps on 5 September. The Canadians captured part of the farm on 16 September and were then repulsed by a counter-attack. By 25 September, further attacks had captured part of the farm on the surface but the Germans still held the cellars, dug-outs and tunnels beneath. The farm was captured on 26 September by the
34th Brigade of the 11th (Northern) Division, in the general attack of the
Battle of Thiepval Ridge. The 9th
Lancashire Fusiliers bombed the exits of the underground positions and also managed to reach the second objective, at the west end of Trench, where German machine-gun nests had held up previous attacks. The 6th East Yorkshire (Pioneers) overwhelmed the last defenders with smoke grenades and took ==Aftermath==