 During the final offensive in September 1918 , the two divisions of Australian mounted troops , as well as the 1st Light Car Patrol and No. 1 Squadron AFC , took part in Battle of Megiddo on 28 September 1918 , a decisive British victory in which 70 @,@ 000 Turkish soldiers were taken prisoner . The Desert Mounted Corps attacked across the Golan Heights , cutting off the north and north @-@ west exits to Damascus on 29 September . On 30 September , the head of a column of 20 @,@ 000 Turkish and German troops was annihilated by the Australian light horsemen as it attempted to withdraw west through the Barada Gorge . Australian troops were the first to enter Damascus , which fell on 1 October . Following an advance of 300 kilometres ( 190 mi ) , Aleppo was captured on 25 October . The Turkish government signed an armistice on 28 October 1918 and surrendered outright two days later . 
