After the failure of the Somme Offensive on 1st July 1916, the British had conducted operations which had moved their front line forward south of the Albert-Bapaume Road, building upon the rare successes of the opening day of the battle. It was a tactic of 'bite and hold' , capture ground and hold it against German counter-attack.
In September 1916 it was decided to attack on a broader front of 11 kilometers using 11 divisions in an attempt to breakthrough the German lines. The attack would be launched from Courcelette to the west, and Flers to the east.
The Canadian Corps were tasked with the capture of Courcelete, III Corps Martinpunch and XV Corps Flers. The assault would see the first use of tanks in warfare. A preliminary bombardment lasting three days would precede the attack.
The 50th Northumbrian Division were part of III Corps and this would be their first set piece battle. The III Corps plan was capture Martinpunch with the 15th (Scottish) Division on the left, clear High Wood with the 47th (2nd London) Division on the right, with the 50th (Northumbrian) Division in the centre.
The 50th Division would attack with 150 Brigade left, 149 Brigade right and 151 Brigade in reserve.
At 06:20, the Divisional Artillery began firing a creeping barrage, moving forward at 50 yards a minute. The first time the 50th (Northumbrian) Division had used this method of fire.