The Fourth Army headquarters located in Amman was strongly garrisoned Defending and during the battle received Receiving reinforcements on the Hejaz railway , the strength of which eventually forced Motion the attacking force to retire Departing back to the Jordan Valley between 31 March and 2 April .

Their objective was to effectively cut Removing the main supply line to the north and south of Amman by destroying Destroying long sections of the Hejaz Railway , including tunnels and a viaduct over which the railway travelled Traveling near the town .

Several days later , to the south of Amman , the Fourth Army 's II Corps which had garrisoned the southern Hejaz Railway , surrendered Surrendering to Chaytor 's Force at Ziza , effectively ending Process_end military operations in the area .

Subsequently , Chaytor 's Force accepted the surrender at Ziza of the Southern Force of the Fourth Army 's II Corps , which had garrisoned the Hejaz Railway south from Amman to effectively end Process_end military operations in the area .