As the day of the attack drew near various units of the Division were attached for special work in connection with the operations. The 10th K.R.R.C. and the 10th R.B. went to the 38th Division on the 25th to provide carrying parties to the front line. They came under severe shelling, meeting for the first time the new German gas, in which it was possible to work for some hours before the effects of the gas were felt. This gas, which could not be seen and could be detected only by the faint smell of sour apples, was very deadly, but few casualties were caused to these two battalions from this source owing to the efficiency of the gas helmet and the special rattles which had been provided to give warning. The 10th R.B. suffered heavy casualties from shell-fire.
During the operations both battalions were employed on reclaiming roads under the C.R.E., and the 11th K.R.R.C. did the same work under the 38th Division. The 59th and 217th Machine Gun Companies moved to forward positions on the 22nd to assist in the barrage on the 31st, when the 59th Machine Gun Company fired over 20,000 rounds on the S.O.S. lines, The 59th Brigade, the 83rd Field Company R.E., and the 11th D.L.I. moved to positions south and west of Elverdinghe on the 30th and 31st. During the operation the 83rd and 96th Field Companies and the D.L.I. constructed artillery tracks under the C.R.E.
The attack was launched at 3.50 A.M. on the 31st of July and went well. The infantry quickly gained the Pilckem Ridge, and by 11.35 A.M. both the 38th and the Guards Divisions were reported to be holding their final objective, the line of the Steenbeek. At 3.30 P.M. the S.O.S. went up from this line and the 92nd and 93rd Field Artillery Brigades opened fire; the barrage came down right on the attacking wave, which broke and ran.
The Steenbeek
During the advance the barrage, which had been practised daily during the preceding week, moved forward at the rate of 100 yards every four minutes, remaining stationary 200 yards beyond each objective. Whilst stationary on these “protectors” some batteries fired smoke shells to form a screen another 200 yards further on. In the 91st Brigade 2nd Lieut. G. C. Glossop, C/91 Battery, and Lieut. H. P. W. Humphreys, D/91, acted as F.O.O.’s, accompanied by twelve N.C.O.’s and men. A buried cable had been dug in up to the front line trenches. As the infantry advanced, a telephone line was run out from the cable head, one officer being responsible for the line and the other for obtaining information. Excellent reports were sent back, and 2nd Lieut. Glossop and Lieut. Humphreys were awarded the M.C. and four men the M.M. for their conspicuous success in maintaining communication to the foremost infantry positions for two days under heavy shell-fire. Lieut. A. Currie of the same brigade won the M.C. for carrying out under heavy shelling a most useful reconnaissance. In the 92nd Brigade Lieut. Pickard, D/92, and 2nd Lieut. Harrison, A/92, acted as F.O.O.’s, and advanced with the infantry. 2nd Lieut. Harrison and many of his party were killed during the action.
As the advance progressed the guns were moved forward. At 10 A.M., when the infantry had taken a line between Pilckem and the Steenbeek, the 92nd Brigade moved forward to positions already chosen just west of the canal. As soon as this brigade was reported in action, about 1.45 P.M., the 91st was ordered to the western slope of Pilckem Ridge. At this time it began to rain. The tracks forward were not yet completed; one road was passable, but only as far as the old German front line. As a result of our bombardment the ground was a mass of shell-holes, with pill-boxes blown upside down and débris scattered everywhere, difficult enough for infantry to move over and almost impossible for guns. As the planked track could not be finished till nearly dark, only one battery, C/91, was able to get to the forward position that day, with eight horses per gun team and all ammunition by pack. The remaining batteries got to the position by dawn the next day. The ground, however, was so swampy that the guns could not open fire until platforms had been made. During the 1st of August, in the efforts to get the guns into some sort of line, one or two were completely bogged and could not be got out for some days. There was great difficulty in getting up ammunition; all had to come by pack along a plank road, at the end of which it was dumped and then brought up some distance to the gun positions by hand. It was hard work for the men, who had no cover of any kind, and who, when there was time to rest, simply slept in the mud.
The rain continued for the next three days, making any movement most difficult. On the 4th the weather cleared and aeroplanes could go up, an opportunity of which the Germans took full advantage, for they shelled the wagon lines heavily that night, causing many casualties among the men and horses.
The C.R.A. took over command of the Right Artillery on the 5th, and the Left Group (91st, 92nd and 93rd Brigades) came under Lieut.-Colonel Ricardo. The next day the 20th Division relieved the 38th, with headquarters at Dragon Camp, about three miles east of Elverdinghe, the 61st Brigade taking over the outpost line.
On the 7th of August Major-General Matheson went to hospital, suffering from gas poisoning. Two days later Major-General Douglas Smith returned to the Division and took command. At the same time Brig.-General Browell, the C.R.A., was invalided home. He was succeeded on the 10th by Brig.-General H. W. A. Christie, C.M.G.