The division's insignia was the signal flag for the 'Number 1'. During the war, the division was involved in the following battles: Battle of Mons, First Battle of the Marne, First Battle of the Aisne, First Battle of Ypres, Battle of Aubers Ridge, Battle of Loos, Battle of the Somme, Battle of Pozières, Third Battle of Ypres, Battle of Épehy.