The Australian mounted troops took part the Capture of Jerusalem in late 1917. These operations included two battles fought in the Judean Hills; the Battle of Nebi Samwil from 17 to 24 November and the Defence of Jerusalem from 26 to 30 December and another fought on the maritime plain; the subsidiary Battle of Jaffa on 21–22 December 1917. This series of battles involved the British Empire's XX Corps, XXI Corps and the Desert Mounted Corps fighting the Turkish 7th Army in the Judean Hills and the 8th Army north of Jaffa on the Mediterranean coast.