The 4th Battalion landed at Le Havre as part of the 9th Brigade in the 3rd Division in August 1914 for service on the Western Front; major engagements involving the battalion included the Battle of Mons and the Battle of Le Cateau in August 1914, the First Battle of the Marne and the First Battle of the Aisne in September 1914 and the Battle of La Bassée, the Battle of Messines and the First Battle of Ypres in October 1914. Members of the Battalion won the first two Victoria Crosses of the war near Mons in August 1914 (Lieutenant Maurice Dease and Private Sidney Godley).