The division was then split up with the 4th Cavalry Brigade serving with Third Army. The brigade took part in the battles of the Hindenburg Line, notably the Battle of the Canal du Nord (27 September–1 October) and the Pursuit to the Selle (9–12 October). Its final action was to take part in the Advance in Picardy (17 October–11 November) including the Battle of the Sambre (4 November), still with Third Army.