Germans from Wavrille Wood was caught by French artillery fire and driven back shattered and in disorder.

On the British front during the night of August 25, 1917, the Germans were driven out of a trench northeast of Guillemont Farm which they had captured earlier in the day. In the morning of August 26, 1917, British troops attacking east of Hargicourt on a front of over a mile won half a mile of ground, and carried by assault strong enemy positions at Cologne and Malakoff Farms. About the same hour of the morning when this advance was made the Germans under cover of a heavy bombardment attacked in the neighborhood of the Ypres-Menin road. In this assault flame projectors were freely used and they succeeded for a brief time in recovering positions in the northwest corner of Inverness Copse. Before they could organize their defenses the British rallied and in a hotly pressed counterattack drove them out and reestablished their positions.

The British did not undertake any infantry action on a large scale during the next few days, but their guns, which far outmatched the Germans', were not taking a rest. An eyewitness whose experience covered many battle fields said he had never seen so many guns great and small as on the wide stretch of country back of Ypres. For miles he walked through concentric lines of batteries and estimated that the British were able to fire a hundred shells to the Germans' one. It was probably with the hope of saving man power that the Germans now built concrete blockhouses in front-line positions capable of holding a score of men, while keeping their main forces far back for counterattacks. But notwithstanding their new methods of defense the Germans lost heavily, for the British guns in forward positions kept the enemy support lines under a constant and blasting fire.

Owing to the fine weather the German aviators were active. In the course of a number of aerial engagements the British brought down four German aeroplanes and drove three others out of control, losing two of their own machines.