It landed in France at the outbreak of the First World War as part of the 4th Cavalry Brigade in the 1st Cavalry Division on 16 August 1914 for service on the Western Front. It took part in the Battle of Mons in August 1914, the First Battle of the Marne in September 1914, the First Battle of Ypres in October 1914 and the Second Battle of Ypres in April 1915 before going on to see further action at the Battle of the Somme in Autumn 1916, the Battle of Arras in April 1917 and the Battle of Cambrai in November 1917.