The 7th (Service) Battalion landed at Boulogne-sur-Mer as part of the 41st Brigade in the 14th (Light) Division in August 1914 for service on the Western Front and saw action the Second Battle of Ypres in May 1915, the Battle of Delville Wood in July 1916 and the Battle of Flers–Courcelette in September 1916 as well as the advance to the Hindenburg Line, the Battle of Arras in April 1917, the Battle of Langemark in August 1917, the First Battle of Passchendaele in October 1917 and the Second Battle of Passchendaele in November 1917 before taking part in the Battle of St Quentin in March 1918 and the Battle of the Avre in April 1918.