"This plan of operations was chosen for the following reasons. The enemy's works in the Hareira-Sheria sector were less formidable than elsewhere, and they were easier of approach than other parts of the enemy's defences. The capture of Beersheba was a necessary preliminary to the main operation, in order to secure the water supply at that place, and to give room for the deployment of the attacking force on the high ground to the north and north-west of Beersheba, from which direction the main attack was to be developed. When Beersheba was in our hands, we should have an open flank against which to operate, and full use could be made of our superiority in mounted troops. Moreover, a success here offered prospects of pursuing our advantage, and forcing the enemy to abandon the rest of his fortified positions, which no other line of attack would afford." The difficulties to be overcome in the operations against Beersheba and the Hareira-Sheria line were considerable. Foremost among them were our old friend, the shortage of water, and, scarcely less formidable, the difficulty of transport. With regard to water, no supply existed in the area over which operations were to take place. "An ample supply of water was known to exist at Beersheba, but 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. Arrangements had therefore 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." This was to some extent met by developing the water supplies at Ecani, Khalassa and Asluj, all places in No Man's Land some miles beyond our right flank. The transport problem was no less difficult. Beersheba, itself some thousand feet above the sea level, lies in a recess on the western slopes of the Judaean Hills. In the bed of this recess runs the Wadi Es Saba. Towards the north-east a good metalled road leads gradually to the summit of the hills and on through Hebron to Jerusalem. North-west a good road led along the enemy's front to Gaza. The railway line, avoiding the heights, for the first ten or twelve miles follows approximately the direction of the Gaza road, and then turns northwards along the Plain or Foothills. But south of the Gaza-Beersheba line there were no good roads, "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, in many places, the going was heavy and difficult.