Further north, his divisions heavily depleted, and reinforcements coming up only slowly, General Gough abandoned the strong Somme-Tortille line, and continued his retreat westward, towards his reserves in the old battlefield of 1916.

The same day, the first French units to arrive were thrown between Crozat Canal and the woods of Genlis and Frières, linking up, on their right, with the 125th Division, detached from the left of the 6th Army, and established astride of the Oise, in front of Viry. (Sketch below).

The 1st Division of dismounted Cuirassiers (Brécart) vigorously attacked the enemy, and succeeded in staying their thrust towards the Oise. The 9th Division (Gamelin) barred the Ham-Noyon road, along a ten mile front. On their left, the 10th Division (Valdant) held the zone north of Guiscard.

The French Divisions were engaged from the Oise to
Nesle, before Noyon, which the British retreat left unprotected.

On the evening of the 23rd, the situation was critical. General Pellé's divisions retarded the German advance in front of the Chauny-Noyon region, which they were covering, but the enemy held Ham. In their retreat, the British constantly bore to the north-west.

The 1st Cavalry Division (Rascas), and the 22nd (Capdepont) and 62nd (Margot) Divisions arrived, and were thrown into the battle between Guiscard and Nesle, where they attempted to join hands with the French 10th Division on their right and with the British on their left.

Converging on Noyon, the Germans effected a breach
north of Nesle.

The same day, the German long range "Bertha" guns began to bombard Paris, in the hope of spreading panic and disorder there.