As soon as this was complete, 34th Division was to be sent to reinforce the French sector of the front. When the Germans launched the last effort of their Spring Offensive on 15 July (the Second Battle of the Marne), the division was diverted and by the evening of 18 July was concentrated round Senlis. The infantry were then moved up by lorry and by 03.00 on 23 July had completed the relief of a French division in the front line near Soissons.