We have now reached the date when Byng's Third Army joined in the fray, and it is necessary to find some means of co-ordinating the narrative and carrying it on in definite stages. The next well-marked crisis which affects each of the armies engaged is the great general attack on September 29, which broke the Hindenburg Line. Therefore, in separate chapters the operations of each army will be brought up to that date, and then further chapters will cover the doings of each up to the date of the Armistice. Since we have dealt with the Fourth Army, we may as well continue with it now until we are in close touch with the Hindenburg Line, premising only that instead of an inert neighbour upon the left we have a very active advancing British Army. We shall then go on to the Third and to the First Armies, and bring each of them in turn up to the same point.

August 22.

On August 22 and the following days, the Fourth Army, with only two Corps—the Third and the Australians—in front, renewed its attack, greatly strengthened by the movement of the Third Army on its left, which ensured that at least five British corps were all moving forward together, distributing the advance over so wide an area that the Germans were less able to concentrate reserves of men or of guns at any one point—a result which was much aided by the fine work of General Mangin's Army on the right.

The main part of the fighting on the front of the Fourth Army on August 22 was north of the Somme, where the Third Australian Division covered the right flank of the Third Corps. On the south of the river the Australian Corps advanced on a front of 4½ miles, and took all their limited objectives, which represented a depth of 1½ miles. This was effected by the Fifth Australian Division on the right and the Fourth on the left, supported and finally supplanted by the First Australian and Lambert's Thirty-Second British Divisions, the latter on the right. The advance, which began at dawn, was no easy one, as the country was much cut about with many obstacles, seamed with trenches, and dotted with scattered woods. The determined infantry would take no denial, however, and Herleville, Chuignies, and several other small village sites were captured. The heaviest fighting was in the woods, but a skilful system of encircling points of danger had been carefully worked out, and the losses were less than might have been anticipated. Sixteen guns, 80 officers, and 2463 men were the trophies of the day. Early in the morning of August 24 the Third Australian Division moved suddenly forward north of the river, captured the town of Bray, and formed a permanent line upon the further side. On August 25 this same unit advanced 3000 yards on a 4000-yard front with very little resistance, always covering the right of the Third Corps.

Let us now follow the work of this Corps from August 22 onwards.

It covered the ground from Albert in the north, where it was working in close liaison with the Welsh Division on the right of the Fifth Corps, down to a point near the Somme where it was in touch with the Australians. The immediate object of the operations was to eject the enemy from the positions in and around Albert which he had held for four months, and also from his whole defensive system opposite to the Amiens defence line, which latter had been regained in the previous fighting. On the day of battle the Forty-seventh London Division was on the right of the Corps line, the Twelfth Division in the centre, and the Eighteenth Division on the left. To this last was confided the difficult and important operation of clearing Albert, and of establishing light bridges over the Ancre so as to cross that stream and attack the high ground east of the town on the Becourt Road. There was to be no preliminary bombardment, but machine-gun and artillery barrages were to cover the infantry.

The zero hour was 4.45, and at the signal the Forty-seventh and Twelfth Divisions advanced behind a creeping barrage, moving at the rate of 100 yards in four minutes, and as thick as 250 field-guns could make it. With such a van of destruction in front the infantry came forward without undue losses, though a particular strong point named the Pear Tree just on the interdivisional boundary held fast and was destined to give trouble for several days to come. As an observer remarked, "Anything British, from a helmet to a tank, which showed over the crest was met by the sweeping fire of many machine-guns, while shells from trench mortars fell in the ranks of men following up. It was only when the general attack was continued that this hornet's nest could be cleared." Save for this point the general objectives marked out for these divisions, which meant an advance of between two and three miles, were successfully made good, but an attempt to follow up with cavalry and whippet tanks could not be persevered in, so stiff was the opposition. It was soon found that the enemy in the Forty-seventh Division sector was not only capable of defence, but of aggression, for about 4 in the afternoon his infantry advanced in a strong attack with a powerful artillery backing, and drove with such violence into the 22nd, 23rd, and 24th Londons, forming the 142nd Brigade, that they were temporarily thrown back. Their right held firm, however, as did the Third Australian Division to the south, so that no gap was formed. Being reinforced by the 175th Brigade from the Fifty-eighth Division in reserve, the Londoners soon reformed their ranks, greatly thinned both by their advance in the morning and by the German onslaught in the afternoon. The enemy's front was so menacing that the rest of the day and part of August 23 were spent in reorganisation and consolidation.

Meanwhile on the left, Lee's Eighteenth Division, a famous all-English unit of the type which, however brilliant its comrades, has always formed the solid core of the magnificent tireless Imperial Army, was carrying out its difficult task at Albert. It had two brigades in the line, the 54th to the south and the 55th to the north of the town. The Germans in front held the line of the Ancre, with Albert as a bridgehead, the ruins and cellars of the town being sown with snipers and machine-guns. To clear the town, to occupy the high ground to the east, and by these operations to cover the flanks of two armies was the function of this Division, and also to secure crossings at Albert by which the Welsh on their left could get across.

The stream in this part was 6 feet deep and 14 wide, with swampy banks strongly held by the enemy. There were unguarded bits, however, and patrols got across on the 21st, which simplified the task, though it deranged at the last moment all the preparations for barrage. Part of the 6th Northamptons and the 11th Royal Fusiliers crossed early on the 22nd and formed up along the edge of the Albert-Meaulte Road, while the rest of the 6th Northamptons fought hard for elbow-room on the right flank, working in close liaison with the 36th Brigade on the left of the Twelfth Division who were attacking Meaulte. About 6 the whole front line advanced in this quarter, flooding over the scattered German posts, and capturing eighty machine-guns with their crews. At the same time the 8th East Surreys on the left had rushed Albert, and after some fine confused fighting had cleared the ruins and taken the whole town, with the river crossings. The 7th Buffs at once pushed out on the Albert-Pozières road, but were held up by very heavy fire. The 11th Royal Fusiliers further south had also been held up by the guns on the summit of Shamrock Hill, east of the town, but a company of the 2nd Bedfords, led by Captain Doake, captured this strong point and the line went forward. Altogether it was a good day's work, and save on the extreme left most of the objects were attained at the cost of reasonable casualties, which included General Sadleir-Jackson of the 54th Brigade, who was badly wounded in the leg. The 53rd Brigade continued their advance up to 10 P.M., so as to gain the high ground on the Becourt Road, and thus prepare for the next day's operations.

The 113th Brigade of the Welsh Division on the left had been passed over by the Albert bridges, and the 53rd had also passed in the night. The plan of August 23 was that these two brigades should attack Usna and Tara Hills respectively, on the high ground to the west of Becourt Wood. The Usna attack is described under the operations of the Fifth Corps. The Tara attack was completely successful, and four tanks rendered conspicuous service. The work was carried out by the 10th Essex, 7th West Kents, and the 7th Queen's from the 55th Brigade. It was a fine military feat, far more important than 350 prisoners would imply, for it broke the girdle round Albert and cleared the road for the advance. No progress was made at the other portions of the corps front on this date, save for some advance on the left of the Twelfth Division near Meaulte.