The advance was met by an extremely heavy machine-gun fire and by a desperately destructive barrage of heavy artillery. In spite of this, the infantry made good progress at several points. The Highlanders of the 44th and the Lowlanders of the 45th Brigades faced the deadly fire with equal bravery, and had soon established themselves to the north and partly to the east of Guémappe. The Twenty-ninth Division had also made a fine advance, being screened from the flank fire which told heavily upon their comrades to north and south. By nine o'clock they had reached the line which had been marked out as their objective, and though the Germans came swarming down from Pelves, they could not budge them from their new positions. On the British left, however, the advance had failed, for the guns in Rœux on the north side of the Scarpe commanded their flank, and the 51st Brigade was unable to get forward in the north, and only slightly in the south. The German counter-attacks developed so strongly in the course of the morning that the Fifteenth Division had to fall back from their advanced positions, taking up a line due north of Guémappe, where it was in very close touch with the Germans in front and with the 88th Brigade upon the left. Both brigades of the Twenty-ninth Division, thrown out in a large semi-circle, held fast to their ground all day. At six in the evening the support brigade of the Fifteenth Division, the 46th Brigade, advanced and again won the forward line, including the village of Guémappe; but the Seventeenth Division upon the left was unable to get forward. The 46th Brigade, as night fell, found its isolated position so precarious that it fell back a little so as to get into closer touch with the right of the Twenty-ninth Division, but still held on to the village. It was a long and hard day's fighting, in which both parties gave and took severe blows. The German resistance was very strong from the first, and though a fair amount of ground was gained, it was at a considerable cost, which was only justified by the fact that the enemy in their counter-attacks suffered even more heavily. At nightfall, a portion only of the first objective had been won. Bavarian and Scot had fought till they were weary round Guémappe, and never had the dour tenacity of our northern troops been more rudely tested. It was a fine exhibition of valour on both sides, but the village stayed with the Scots.

The Seventeenth Corps on the other side of the Scarpe had very similar experiences upon this day of battle as their neighbours in the south. The Thirty-seventh Division was on their left and the Fifty-first upon the right. The Thirty-seventh pushed their line forward to their final objective, which did not contain any particular village. This advanced line they were able to hold. The Fifty-first Division, charging forward with the old Celtic fire, carried the Chemical Works by assault, and the Corona Trench beyond them; but after a desperate day of alternate advance and retreat, their final line was to the west of the Chemical Works. It was a very hard day's work upon this sector, and the losses upon both sides were very heavy.

The Thirteenth Corps upon the same day had attacked Oppy and Gavrelle to the north, with the result that the Sixty-third Division captured the latter. Oppy had proved to be, for the time, inviolable; but the assault upon Gavrelle was brilliantly successful, the village being stormed with a splendid rush, in spite of the most deadly fire, by the 189th and 190th Brigades of the Sixty-third Naval Division. The German losses were greatly increased upon this occasion by their unsuccessful counter-attacks, which spread over several successive days, and never made an impression. It is on record that one gathering of 2000 men, collected in a hollow, was observed and signalled to the guns, with the result that they were simply shot to pieces by a sudden concentration of fire. An officer who observed this incident has made a statement as to the complete nature of the catastrophe. More than 1000 prisoners were taken on this front, and nearly 3000 in all. To the north of the line the Fifth Division also advanced on the German position, the chief attack being carried out by the 95th Brigade, having the Electric Generating Station as its objective. In this operation the 1st Cornwalls particularly distinguished themselves. The result of the advance was a mere readjustment of the line, for the 15th Brigade upon the right was stopped by uncut wire, though the Germans were actually seen holding up their hands in the trenches. Seeing the attack at a standstill, the Germans brought up their machine-guns and drove it back. Upon the immediate north of the Fifth Division, the Sherwood Forester Brigade of the Forty-sixth Division was brought to a stand in front of Hill 65 and Fosse 3, two strong positions bristling with machine-guns. The 6th and 8th Foresters suffered heavily in this attack, 9 officers and 200 men being killed, wounded, or taken. Farther still to the north, the Sixth Division had moved towards the Dynamite Magazine and Nash Alley, but here also the attack was held by the defence. On the whole, in spite of the prisoners and in spite of Guémappe and Gavrelle, it was doubtful if the gains made up for the losses upon the day's balance.

April 24

A second day of hard fighting was destined to follow that of April 23, though the advance began later in the day. In the area of the Seventh Corps some advance was made in the centre and two field-guns were captured. The Sixth Corps also went forward again. The front attacked was strong, the fire heavy, and the attacking troops had again and again been through the furnace, which had only tempered their courage, but had woefully consumed their numbers. The Fifteenth Division in the south got forward some distance and dug themselves in on the new line. The Twenty-ninth also made some gains, but were unable to retain them, and fell back upon their old line. In the movement some of the parties to flank and rear were overwhelmed, and 250 men, including 3 officers, were taken. In the north, the Seventeenth Division held its old line, and did not join in the advance. After nightfall the Twelfth Division came into line again, relieving the weary Twenty-ninth. Farther north the Seventeenth Corps and the First Army were driving back counter-attacks.

The next day (April 25) saw the long struggle still renewed. In the early morning the 50th and 52nd Brigades of the Seventeenth Division went forward and made some progress, as did the indomitable Fifteenth Division in the south. It was clear, however, that the forces available for attack were not strong enough to attain any considerable result in this portion of the line. The Fifteenth, however, were not to be denied, and with extraordinary tenacity they made a sudden night attack upon April 26, and for a time got possession of a strong German post, called Cavalry Farm, which barred the way. The April 27 enemy counter-attacked in the early morning of April 27 and re-occupied the Farm, but the Scotsmen held firmly to the trenches immediately south of it. At this date the Seventeenth drew out of the line and the Third came in again in the centre of the Corps front, while the Twelfth moved to the left. They were just in time to meet a strong German night attack upon April 27, which broke before the rifle and machine-gun fire of the infantry at the point of contact between the two divisions. The German losses were heavy, and they left a few prisoners behind them.

April 28

April 28 had been fixed for a forward movement of Fergusson's Seventeenth Corps on the north of the Scarpe, so the Twelfth Division on the south bank advanced in sympathy with it. This attack gained possession of part of Bayonet Trench, a formidable line which crossed the front, but a further attack was unable to clear the whole of it, on account of the very severe machine-gun fire down the Scarpe Valley. It was a day of hard fighting to the north of the Scarpe, which only affected the line of the Sixth Corps to the extent that the Thirty-fourth Division failed to carry the Chemical Works on the north bank of the river. It was the possession by the enemy of this position and of the village of Rœux to the east of it which was so fatal to all advances south of the Scarpe, as the guns from these places enfiladed the southern line. But for this the Twelfth Division might have reached their whole objective. The Thirty-fourth Division made another attempt upon Rœux in the middle of the night, but again without success, and the Second Division farther north had no better luck in front of Oppy.

Although the progress had been very limited at the southern end of the line, there were better results to the north. The Canadians, whose staying power in this long-drawn fighting was as remarkable as their valour, had taken Arleux, together with a considerable section of trench upon either side of it. This fine assault was opposed by wire, by sunken roads, and by a desperate hand-to-hand encounter amid the ruins, all of which failed to hold the Canadian infantry. On their right the 5th and 6th Brigades of the Second Division were heavily engaged in front of Oppy and Oppy Wood with some success at first, but this was neutralised by a strong German counter-attack. Some progress had been made also by the Thirty-seventh Division upon the left, and by the Thirty-fourth Division to the right of the Seventeenth Corps to the north of Gavrelle, and on the slopes of the long incline known as Greenland Hill between Gavrelle and Rœux. In these two days of defensive fighting the German bulletins claimed a victory, but the fact that they had lost ground and nearly 1000 prisoners was sufficient to show how hollow was the pretence. Their losses were greatly increased by the continual unsuccessful counter-attacks which they threw against the new positions in the Oppy line, which had now reached the edge of the village. Gavrelle village was attacked no less than seven times, and each time the stormers were completely repulsed.

April 23