At five o'clock nine tanks moved forward behind a crashing stationary barrage, and the infantry followed eagerly through a weak German fire. In spite of all precautions the Fusiliers had lost 400 men from gas, but otherwise the casualties were very small. It may be remarked that many of these serious gas cases occurred from the reek of the gas out of the long grass when the sun dried the dew, showing how subtle and dangerous a weapon is this distillation of mustard. Some small consolation could be gained by the British soldier suffering from these hellish devices, by the knowledge that our chemists, driven to retaliate, had in mustard gas, as in every other poison, produced a stronger brew than the original inventor. Well might the German garrison of Lens declare that they wished they could have dropped that original inventor into one of his own retorts.

The advance of the Guards kept pace on the left with that of the Second Division. The 2nd Brigade went forward with Moyenneville for its immediate objective. The 1st Coldstream in the north were to carry the village, while the 1st Scots were to assemble in the low ground north of Ayette, and to carry the attack to the Ablainzeville-Moyenneville Ridge. The 3rd Grenadiers were then to pass through the Scots and to capture the line of the railway. The opening of the attack was much the same as in the case of the troops on the right, save that no difficulty was experienced from gas. There were few losses in the two leading battalions, which took many prisoners, and it was only the 3rd Grenadiers who, as they neared the railway, met a good deal of machine-gun fire, but pushed on in spite of it and made good the line of their objective.

In the meantime the 9th Brigade of the Third Division had moved through the ranks of the 99th Brigade, and had carried on the advance in the southern area. They advanced with the 1st Northumberland Fusiliers on the right and 4th Royal Fusiliers behind them. The latter had the misfortune to lose Colonel Hartley and 50 men from a shell-burst while moving into position. The left front of the brigade was formed by the 13th King's Liverpools. The whole line advancing in open order passed on without a check, save from mist which caused loss of direction and constant reference to the compass. Over a series of trenches the line plodded its way, clearing up occasional machine-guns and their crews. By 9.15 they were on the railway embankment.

The 8th Brigade (Fisher) of the Third Division had also advanced on the left of the 9th, keeping pace with it so far as the fog would allow. The 7th Shropshires were on the left, in touch with the Guards. The 1st Scots Fusiliers were on the right and the 2nd Royal Scots in support. The attack was directed upon Courcelles, which was carried by the Scots Fusiliers and mopped up by the 8th Royal Lancasters. From the village a sharp slope leads down to the railway line and here the opposition was very strong, the ground being closely swept by rifle and machine-gun fire. Behind two tanks the leading battalions rushed forward and the railway was rushed, with 200 prisoners. The position was organised, and touch established with the Guards on the left and with the 9th Brigade on the right. The 9th Brigade found it difficult, however, to get touch with the Sixty-third Naval Division on their right, that unit having experienced considerable difficulties and losses. The 76th Brigade, the remaining unit of the Third Division, had the 2nd Suffolks and 1st Gordons close up to the line, and all of these battalions were much mixed up owing to the persistent fog.

A very determined pocket of German infantry and machine-gunners had remained in front of the left flank of the Sixty-third Division, formed by the 188th Brigade. These men were now on the right rear of the 9th Brigade, but the situation was obscure and nothing was certain save that the British line was not yet continuous and solid. In spite of a concentration of artillery the Germans were still holding out next morning, being the only hostile units to the west of the railway line on the Sixth Corps sector.

An attempt had been made to get forward to Achiet-le-Grand, in which part of the Sixty-third Division on the right and two companies of the Gordons participated. The Ansons and the Gordons both lost considerably in this attack and were unable to reach the village, though they advanced the line by 500 yards. Lack of artillery support, while the enemy guns were numerous and active, was the cause of the check.

The night of August 21 was quiet on most parts of this new front of the Third Army, but at early dawn a counter-attack developed before the Sixty-third Division and before the 8th Brigade. An S.O.S. barrage was called for and promptly given in each case, which entirely extinguished the attack upon the Sixty-third. On the 8th Brigade front some of the German infantry got as far forward as the railway line but were quickly hurled back again by bombs and the bayonet. At 7.45 A.M. the enemy again made a rush and occupied one post of the railway, from which, as well as from the posts on the right of the 9th Brigade where the railway line was not yet in British hands, he enfiladed the front defences during the day, causing many casualties, until in the evening the post was retaken by the 1st Northumberland Fusiliers. Among the gas cases sent to the rear this day, though his injuries had been incurred during the assembly, was General Fisher of the 8th Brigade.

August 22, 23.

The Guards in the north had also encountered the attack of the early morning of August 22, which seems to have been general along the line, though at no part very vigorous. This particular section of it was delivered near Hamelincourt by the Fortieth Saxon Division, who suffered terribly in the venture. The rest of the day was comparatively quiet and was spent in arranging the attack for the morrow. This attack was planned with the idea of outflanking the German position at Achiet-le-Grand, which had shown itself to be dangerously strong. It was determined to outflank it both upon the north and the south. With this intention the Third Division was to capture Gomiecourt during the night of August 22. Farther north two fresh divisions, the famous Fifty-sixth London Territorials, and the Fifty-second from Palestine, were ordered to prolong the line of the Guards, all under General Haldane, and to capture Hamelincourt, Boyelles, and Boiry Becquerelle, with as much more as they could get, on the early morning of August 23. On the front of the Fourth Corps on the right the advance was entrusted to the Thirty-seventh Division and to the Forty-second Division on the bank of the Ancre.

The attack upon Gomiecourt, which was to be the prelude of the day's work, since all advance to the south was impossible while that village was in German hands, was carried out by the well-tried 76th Brigade, the 8th Royal Lancasters and 2nd Suffolks in the front line, with the 1st Gordons in close support. Tanks were to lead the van, but they were unable to get across the railway embankment in time. The assault, which began at 4 in the morning, was preceded by a short crashing bombardment of heavy shells upon the doomed village. It had hardly ceased before the Suffolks and Lancasters were swarming down the street, and the place was secured with little loss. Whilst this brisk and successful affair was going on, the 13th King's Liverpools of the 9th Brigade on the right made an advance to keep the line level, taking some prisoners and three guns. This was the more important as the weak point of the situation had always been to the south and most of the damage sustained was by enfilade fire from this direction.