The brigade served with the 1st Division during the First World War, from 1914 to 1918 and served throughout the war on the Western Front as part of the British Expeditionary Force (BEF). The brigade fought in many of the major battles of the war, first fighting at Mons where they were forced to retreat, and later the First Battle of Ypres, the Second Battle of Ypres and later the Battle of the Somme and Battle of Passchendaele, the German spring offensive and the Hundred Days Offensive.