The Staffordshire Yeomanry, after a short period of training at Diss, Norfolk with the North Midland Mounted Brigade, was ordered to join the Egyptian Expeditionary Force in 1915. The Regiment was attached to the 22nd Mounted Brigade, Yeomanry Mounted Division in the Sinai and Palestine Campaign against the Ottoman Turkish and German army 1916–1918. It fought in the indecisive First Battle of Gaza and Second Battle of Gaza in March and April 1917. They finally won through in the Third Battle of Gaza in October 1917 and the crucial follow up Battle of Beersheba on 6 November 1917, where Allied victory at last left the field open for the capture of Jerusalem on 9 December 1917.