 During the Battle of the Lys in April 1918 the division suffered further heavy casualties forcing the division out of action until September 1918.In September 1918 the 6th Division went into action for the last time during The Great War when they took part in the Hundred Days Offensive.By 31 October the 2nd Yorks and Lancs were on the banks of the Sambre-Oise Canal when they were withdrawn from the front line.