It has already been stated that on August 25 Sir Charles Fergusson's Seventeenth Corps was formed on the left of General Byng's Third Army and became the northern unit in that force, having the Sixth Corps on its right and the Canadian Corps on its left. It contained at first three divisions, the Fifty-second (Hill), Fifty-sixth (Hull), and Fifty-seventh (Barnes). Two of these had already been heavily engaged in the new advance before becoming part of the Seventeenth Corps. Indeed on the day preceding the entrance of the Corps into the line, the evening of August 24, the Fifty-sixth Division had attacked the Hindenburg Line at Summit Trench and Hill Switch, near Croisilles, without effect. They had now established themselves near their objective and were waiting orders to try again.
The Fifty-second Division, one of the fine units which had been released from Palestine owing to the reinforcements of Indian troops in that country, had also tried for the Hindenburg Line and taken a bit of it upon August 24, but they had found it too hot to hold. They were now lying low on the western borders of Henin Hill, hoping to co-operate with the Canadians of the First Army on their left at some later date. A line of British divisions was now crouching in front of Hindenburg's bars all ready for a spring.
In the new attack it was planned that the Fifty-sixth Londoners should co-operate with the Sixth Corps on their right, and clear the village of Croisilles by outflanking it, while the Fifty-second Division should work on the north of the Cojeul stream in close touch with the big Canadian attack, advancing towards Fontaine-les-Croisilles. The effect of these movements would be that the portion of the Hindenburg Line which faced the Seventeenth Corps would be attacked from the rear instead of the front.
August 26.
On August 26 at 3 A.M. the Canadians went forward, as will be told under the head of their operations. The Fifty-second Division kept its place on their right flank, working up along the Cojeul River, and carrying all the objectives allotted to them. By 10.35 A.M. their task had been completed and they were still in close touch with the Canadians. In the afternoon the 155th Brigade on the extreme left, consisting of Scottish Territorials, attacked Henin Hill from the north-west, capturing a succession of machine-gun positions. The crews of these guns got—and indeed accepted—little quarter, fighting staunchly to the last. By 4 o'clock the Fifty-second Division was well into the Hindenburg Line from the Cojeul northwards; and by 5 o'clock the 155th Brigade was across Henin Hill, moving south-east. The whole of this very important position was now in British possession, though there were pockets of the enemy scattered here and there who were holding out to the last. The Fifty-sixth Division on the right was still in front of Croisilles, sending out occasional patrols which reported that the village was still strongly held. Its orders were to maintain pressure but not to advance until the development of the movement in the north should shake the enemy's resistance.
August 27, 28.
On August 27 Croisilles and the strong trenches around it were kept under bombardment. The Fifty-sixth Division began to thrust forward its left flank, and made some progress, but was eventually held by very heavy fire from the south. At midday the Fifty-second Division was driving down from the north, getting to the Sensée River about Fontaine and endeavouring to help the left of the Fifty-sixth Division by moving along the Hindenburg Line. This was partly accomplished, but it was impossible for the Fifty-sixth to get ahead as the troops on their right in the Ledger Trenches had also been held up. That evening the Fifty-second Division after a fine term of service was drawn out and the Fifty-seventh took its place.
Early on August 28 it was evident that the scheme for pinching out Croisilles had been successful. At 8 A.M. a contact aeroplane reported the village to be empty, and at 8.30 the London patrols were in the main street. There now lay Bullecourt in front of the Fifty-sixth, and Hendecourt and Riencourt in front of the Fifty-seventh Division. At 12.30 the attack was in full swing, lines of the gallant Territorials of London and Lancashire streaming across the low dun-coloured curves which are cut by the famous trenches. It was a long uphill fight, but by 4.30 in the afternoon the 169th Brigade, containing the London Rifle Brigade, the 2nd Londons, and the Westminsters, had fought their way into Bullecourt. There they were held, however, for there were numerous pockets of Germans in their rear, and the machine-guns pelted them from every side, while the village was far from clear. The 167th Brigade on the right had also been held up by machine-guns, all three battalions, the 1st London and the 7th and 8th Middlesex, having heavy losses and being forced back for a time. The Fifty-seventh Division on the left of the line encountered the same desperate resistance, which could only have been overcome by troops who would take no denial. Hendecourt was not reached, but all the gains of the morning were held as a basis for a future advance. The liaison on either flank with the Sixth Corps and the Canadians was complete. It had been a day of very hard and expensive fighting and of no very marked success.
August 29.
The battle was renewed about midday on August 29, the morning having been devoted to repulverising the powder-heap of Bullecourt with heavy artillery, and to clearing up some of the pockets in the immediate front of the advance. The Fifty-sixth Division advanced once more, the 168th Brigade having taken the right of the line. The machine-guns were still very destructive, and the right and centre were held up, though the left made some progress. The general result was to get the British line all round Bullecourt, but the village itself was still defiant. The Fifty-seventh Division on the left had another day of desperate fighting, in which the Lancashire Territorials showed their usual valour. At 4.30 some of them had got through Hendecourt and had penetrated, with great difficulty and suffering heavily, into Riencourt. It was afterwards found that some ardent spirits had even forced their way into the Drocourt-Quéant line, and left their dead there as a proof for those who followed after. The line in the evening was the western outskirts of Hendecourt, where they were in touch with the right of the Canadian Division.