Meuse-Argonne offensive (1918), part of the overall Allied offensive of late 1918 to defeat the German army before the onset of winter. It was fought by the US First Army under Pershing, under overall co-ordination of Foch. Its aim was to break through the Hindenburg Line in the 35 mile (56 km) sector of hills and forest west of Verdun, and extending northwards from the Argonne forest to Sedan. The major component of the attacking force was 22 US infantry divisions, only 3 of whom had previously seen action, and 6 French divisions (totalling 500, 000 men), plus tank support.
The offensive came hard on the heels of the Saint-Mihiel battle, and American units fighting in the former, through slick staff work, were speedily redeployed in night moves to the Meuse-Argonne front, some 65 miles (105 km) away. In the planning phase, to maintain secrecy US officers wore French uniforms when visiting the front. During their four years of occupation, the Germans had created four successive, mutually supporting defensive lines, linked by trenches and interlocking arcs of fire.
Preceded by a three-hour bombardment, US troops attacked at 05.30 on 26 September in thick fog but made little headway in the centre. However, the flanks broke through, and Lt Col Patton, commanding nearly 200 little Renault FT tanks, steamed ahead of the infantry he was supposed to be supporting. The German first lines were overrun, but between 27 and 30 September Gen Ludendorff reinforced the sector with over twenty divisions, supported by excellent artillery, his last reserves, who mounted a vigorous series of counter-attacks.
Due to inexperience, American transport and communications broke down initially, with the result that some scattered US units received no food or ammunition for four days. The weather was unfriendly, reinforcements scarce, and thus the momentum slowed. Pershing resumed the advance on 4 October, keen to demonstrate the power of his army, and hard fighting continued until 29 October, when the Germans finally fell back to the west bank of the Meuse. The attack was renewed on 1 November and by 6 November Sedan had been taken. A further advance began but was halted by the Armistice. Of the 115, 000 US casualties, an unusually low 15, 000 were killed.
— Peter Caddick-Adams




