In the big offensive the attack which had been scheduled for the Fourth Army began at 5.25 on the morning of September 26. The mission of the 157th French Division was “to exploit the successes after the initial breaking through attack had attained the assigned objectives.” The 372nd was ordered to advance at 3 in the afternoon. The headquarters and headquarters company occupied the north bank of Marson Brook, and the three battalions were on the south of the brook. On the 27th the First and Third Battalions marched north to new positions in Ravin d’Hébaterne, while the Second Battalion was held in reserve for the 157th Division. On the 28th the Second Battalion advanced to Ripont by Corduroy road. The Third was ordered to attack north of Ripont Rouvroy road, which it did at 11.30. Stubborn resistance was offered by the enemy from their entrenchments on Crete-des-Observatoires, but after hard fighting, which lasted the entire afternoon, this position was rushed and cleared. The Third Battalion captured in this advance 60 prisoners, one 105-calibre field-gun, two 77-calibre field-guns, 2 anti-tank rifles, and large quantities of material and small arm ammunition. The Third Battalion continued its advance until night, reaching the woods south of Bussy Farm, three and a half kilometers north of Ripont. Its ranks had been greatly depleted in the day’s operations. On September 29 the First Battalion was ordered to attack towards Moulin, L’Avébrune, and then towards Challerange, but after starting the attack it was obliged to leave its direction of attack and advance toward Sechault because of the strong resistance from that direction. The town was finally captured, the First Battalion of the 372nd assisting. Because of the casualties suffered by the First and Third Battalions, they were ordered at nightfall to the woods south of Bussy Farm, where they were reorganized into one provisional battalion. On September 30 the Second Battalion advanced to a plateau 250 meters south of Bussy Farm and on October 1 to Trières Farm, where it relieved a battalion of the 371st Infantry. The provisional battalion, commanded by Major Johnson, advanced three kilometers north of Sechault on the Sechault-Monthoise road, capturing the town of Ardeuil. On October 3 the advance was held up, pending the capture of Croix de Langley, west of Monthoise, by the 120th French Division, which was stopped in its advance. The enemy took advantage of a heavy fog on the 4th and launched a strong counter-attack, assisted by heavy artillery preparation. This attack, which developed into a hand-to-hand combat, was completely repulsed by two battalions of the 333rd French Regiment, and the Second Battalion of the 372nd, the enemy leaving behind 55 prisoners and 6 machine-guns.