It was important, in order to keep the enemy in doubt up to the last moment as to the real point of attack, that an attack should also be made on the enemy's right at Gaza in conjunction with the main operations. One of my Commanders was therefore ordered to prepare a scheme for operations against Gaza on as large a scale as the force at his disposal would permit. I also asked the Senior Naval Officer of Egypt, Rear-Admiral T. Jackson, C.B., M.V.O., to afford me naval cooperation by bombarding the Gaza defences and the enemy's railway stations and depots north of Gaza. Rear-Admiral Jackson afforded me cordial assistance, and during the period of preparation Naval Officers worked in the closest cooperation with my staff at General Headquarters and the staff of the G.O.C. troops operating in that region. [Sidenote: Difficulties regarding water and transport.] The difficulties to be overcome in the operations against Beersheba and the Sheria-Hareira line were considerable, and careful preparations and training were necessary. The chief difficulties were those of water and transport, and arrangements had to be made to ensure that the troops could be kept supplied with water while operating at considerable distances from their original water base for a period which might amount to a week or more; for, though it was known that an ample supply of water existed at Beersheba, it was uncertain how quickly it could be developed or to what extent the enemy would have damaged the wells before we succeeded in occupying the town. Except at Beersheba, no large supply of water would be found till Sheria and Hareira had been captured. [Sidenote: No good roads south of Gaza-Beersheba line.] [Sidenote: Railway lines to be laid.] The transport problem was no less difficult; there were no good roads south of the line Gaza-Beersheba, and no reliance could therefore be placed on the use of motor transport. Owing to the steep banks of many of the wadis which intersected the area of operations, the routes passable by wheeled transport were limited, and the going was heavy and difficult in many places. Practically the whole of the transport available in the force, including 30,000 pack camels, had to be allotted to one portion of the eastern force to enable it to be kept supplied with food, water, and ammunition at a distance of 15 to 20 miles in advance of railhead. Arrangements were also made for railhead to be pushed forward as rapidly as possible towards Karm, and for a line to be laid from Gamli toward Beersheba for the transport of ammunition. A railway line was also laid from Deir el Belah to the Wadi Ghuzze, close behind the sector held by another portion of the eastern force. [Sidenote: Rushing up artillery and supplies.]