As predicted, it was a drive to get across the Marne east of om Chateau-Thierry east were the Third American Division.Allied air reconnaissance observed German forces moving north to face the Sixth Army and discovered the gap.Preparations began for the American led.

French armies and the, british Expeditionary Force (BEF) along the, marne River forced the Imperial German Army to retreat northwest, leading to the.Frontal attacks by the Ninth, Fifth, and Sixth Armies were repulsed from 1516 September.Subsequent operations edit First Battle of the Aisne, 1328 September edit Main article: First Battle of the Aisne Opposing positions: 5 September (dashed line) 13 September (black line) On 10 September, Joffre ordered the French armies and the BEF to advance and for four days.

It seemed that Paris would be taken as both the.On 11 and 12 September, Joffre ordered outflanking manoeuvres by the armies on the left flank but the advance was too slow to catch the Germans, who ended their withdrawal on 14 September, on high ground on the north bank of the Aisne and began.