The occupation by the British of a series of redoubts around the Malassise Farm brought their line nearer to the St. Quentin Canal at Vendhuile. Only three fortified villages now remained in German hands on the battle front between Villers-Guislain and the defenses of St. Quentin. With the capture of Ronssoy by English County troops, Lempire, a village one mile to the north, was completely cleared of the enemy. The Germans were now clinging to strong positions in ravines, quarries, and ditches between Lempire and Villers-Guislain, but they had suffered so severely in recent counterattacks that they attempted no more.
In the course of operations on September 21 and 22, 1918, advances were made by English troops east of Epihy, and the Australians near Hargicourt made new inroads into the outer defenses of the Hindenburg line northwest of St. Quentin. The most extensive gain was made north of the Scarpe River, where the Germans were thrown back on a two-mile front.
South of Villers-Guislain, and to the right of this sector, the Germans launched a powerful counterattack which was crushed by the British, who flung the enemy back and took advantage of the opportunity to carry forward their line.
On the French front in spite of increased enemy resistance substantial gains were made daily. By the capture of the woods north of Lys-Fontaine the Germans were forced to evacuate Vendhuile to escape being cornered there with their backs to the river Oise. General Debeney's troops now held all the west bank of the Oise for more than half the distance from La Fère to Moy. The French had now reached the heavy, marshy country south of the valley of the Oise, which offered great difficulties to any troops that might attempt a crossing north of La Fère.
Debeney's men continued to advance all day September 22, 1918, toward the La Fère road south of St. Quentin, and as they approached nearer the Hindenburg line around that place the Germans made determined efforts to keep them from it. North of the Somme they were hurriedly organizing a defensive system on a line of heights running parallel to the Hindenburg positions from east of Holnon to Hill 23, and thence through Hill 138 east of Savy Wood to Dallon Height on the road from Ham to St. Quentin.
South of the Somme the French advanced into a defense line parallel to the Hindenburg positions, by winning a height northeast of Castres, the line of ridges connecting Urvillers and Cerizy and the spur that dominates Mayot from the west.
British and French troops on September 24, 1918, attacking on adjacent fronts totaling about seven miles, made advances that tightened their grip on St. Quentin from the northwest, west, and southwest.
By the capture of Pontruet, Marshal Haig's troops had now advanced within three-quarters of a mile of important defenses of the Hindenburg line at the bend of St. Quentin Canal. On the right wing of the British, the French took Francilly-Silency, Dallon, and other villages which, with the British occupation of the high ground west of Fayot, gave the Allies a line of positions lying in a five-mile arc of a circle with a radius of less than three miles from the center at St. Quentin.
General Gouraud's troops attacking the German positions in the Champagne on September 26, 1918, won their first objectives within a few hours, and took Serven which had been in the hands of the enemy since 1914. Gouraud's troops also occupied the high ground positions of the Butte de Mesnil and the Navarin Farm. The abandonment by the Germans of strong positions which they had held for a long time, and had made as impregnable as human ingenuity could devise, demonstrated that they were in a panicky and nervous state of mind.
The Third and Fourth British Armies under General Sir Henry Horne and Sir Julian Byng made an attack before daybreak on September 27, 1918, on a wide front toward Cambrai, and were successful in carrying all their objectives. The principal attack was on a front of fourteen miles, and resulted in the winning of German positions of great strength. On the north of the main attack the British captured Beaucamp, and drove the enemy from the ridge toward Marcoing. Arleux-en-Gohelle on the extreme left was occupied, and in operations north and south of the Sensee and Scarpe Rivers the towns of Sauchy-Lestrées and Sauchy-Cauchy were captured.