Hindenburg line on the northern sector of their attack. Canadians captured the villages of Wancourt and Monchy-le-Preux which formed part of the famous German defense, and they continued to make progress in an easterly direction. Scottish troops, driving forward on the north bank of the Scarpe, reached the outskirts of Roeux, north of Monchy-le-Preux.

General Debeney's First Army, after crushing the Germans in their battle positions around Roye, captured the town and continued pursuing the enemy who were retreating on a line from Hallu to the region south of Roye. The French advance was made on a twelve-mile front, and territory was gained to a depth of two and a half miles, the Germans being forced back on both sides of the Avre River.