The 6th (Service) Battalion was formed in August 1914; it was attached to 38th Brigade in 13th (Western) Division; it landed at Gallipoli July 1915 and later served in Mesopotamia. The 7th (Service) Battalion was formed in September 1914; it was attached to 56th Brigade in 19th (Western) Division; it landed in France in July 1915 and was disbanded February 1918 due to an Army-wide reorganisation. The 8th (Service) Battalion was formed in October 1914; it was attached to 76th Brigade in 25th Division; it landed in France in September 1915 and served on the Western Front for the war: it helped to slow the German Advance at the Battle of St. Quentin on 21 March 1918.