The division relieved the veteran 1st Infantry Division near Mortain on 6 August. The German drive to Avranches began shortly after. The 30th Division clashed with the elite 1st SS Panzer Division, and fierce fighting in place with all available personnel broke out. The division frustrated enemy plans and broke the spearhead of the enemy assault in a violent struggle from 7–12 August. After the liberation of Paris, the division drove east through Belgium, crossing the Meuse River at Visé and Liège on 10 September. Elements of the division entered the Netherlands on 12 September, and Maastricht fell the next day. Moving into Germany and taking up positions along the Wurm River, the 30th Division launched its attack on the heavily defended city of Aachen on 2 October 1944, and succeeded in contacting the 1st Division on 16 October, resulting in the encirclement and takeover of Aachen.