The 1st Battalion landed at Marseille as part of the Sirhind Brigade in the 3rd (Lahore) Division in December 1914 for service on the Western Front and saw action at the Defence of Festubert in November 1914, the Battle of Neuve Chapelle in March 1915, the Battle of St Julien in May 1915 and the Second Battle of Ypres later in May 1915. It then moved to Mesopotamia in December 1915 and saw action at the Siege of Kut in Spring 1916 and the Battle of Sharqat in October 1918.