In the months of July and August the reinforcements from Cairo began to arrive, and as they came up were concentrated with the rest of the force at Omdurman, opposite Khartoum where a regular camp had been formed.
On the 9th of September, 1883, Hicks' army marched out from the camp at Omdurman on its way to Duem, 110 miles distant. The force then consisted of 10,000 men (including camel-men and camp followers) with four Krupp field guns, ten mountain guns, and six Nordenfeldts. The undermentioned Europeans accompanied the force, which Hicks subsequently joined at Duem:—Colonel Farquhar, chief of the staff; Majors Seckendorff, Warner, Massy, and Evans; Captains Herlth and Matyuga; Lieutenant Morris Brody; Surgeon-General Georges Bey and Surgeon-Major Rosenberg; Mr. O'Donovan, correspondent of the "Daily News," and Mr. Vizetelly, artist of the "Graphic."
On the march to Duem no hostility was encountered. Most of the natives had fled at the approach of the troops. The heat was intense, the thermometer ranging from 105 to 115 degrees Fahrenheit in the shade. Four men and 200 camels died on the way. The expedition reached Duem on the 20th, where it was met by Al-ed Din Pasha.
Hicks on the 6th of September had telegraphed to Cairo that he was starting for Kordofan; he added that he expected to encounter great difficulties in supplying his force with water. Kordofan, it may be observed, is the driest province in the Soudan. The wells contained but little water except immediately after the rains, and even then they were insufficient for a large force with camels, horses, &c.
His original plan was to march to Bara and Obeid by the northern and more direct route. By this road the distance would be about 136 miles. Posts were to have been established along the line to keep up communication with the river at Duem, where a depôt was to have been formed. Both Bara and Obeid were to have been retaken and garrisoned. The former, being thirty-five miles to the north of the latter, and situated in a fertile country, was to have been first attacked. Here it was proposed the army should remain for a few days to rest and replenish its stores.
On Hicks joining the army at Duem, these arrangements had to be entirely changed. According to Al-ed Din Pasha, the information he had obtained led him to believe that the best supply of water would be found on the southern route by Shatt, Norabi, and the Khor-Abu-Hable to Rahad, some forty-five miles east of Obeid. The distance by this route, however, was fully 250 miles, being more than 100 miles greater than by the northern road—a very grave objection. It had been all along known that on striking the Khor-Abu-Hable, which is a torrent taking its rise in Ghebel-Kulfan, a mountain some fifty miles south of Obeid, the army could follow its course for 100 miles, thus making sure of an ample supply of water for that distance. But the difficulty consisted in reaching Norabi, ninety miles distant from Duem, and it was this consideration which had induced Hicks to reject this route. Now Al-ed Din represented that water could be found between the two places, and the question of water supply being paramount, Hicks was induced to change his decision and proceed by the southern route, notwithstanding the increased distance.
On the 24th of September an advance party of 2,400 infantry, one squadron of Bashi-Bazouks, two Krupp and four mountain guns, seized the wells at the village of Shatt, sixteen miles distant. Here the first post was established.
On the 27th, Hicks telegraphed to the Minister of War from Shatt that the main body of the army would march forward that day, and added, "The difficulty of getting over the increased distance is nothing when the facilities for obtaining water on the march by this route are taken into consideration."
On the same day the army marched forth to its fate. Taking a south-westerly direction, on the 30th it encamped at Zeraiga, a village thirty miles south-west of Duem. The heat continued to be overpowering, and the camels were dying in numbers. During the march a difference of opinion arose between Hicks and Al-ed Din, the latter, in view of the change of route, wishing to give up the proposed series of posts connecting the army with its base. Hicks, on the other hand, was most unwilling, for obvious reasons, to take any such step. In a despatch, without date, in the General's writing, purporting to be written from a spot twenty-eight miles from Serakna, Hicks thus expresses himself:—
"The army has arrived within twenty-eight miles of Serakna, which place is twenty-two miles from Norabi. We have depended upon pools of rainwater for supply, which we have fortunately found. A reconnaissance made to-day insures us water as far as Serakna, guides' information is vague. I regret that I have to abandon my intention of establishing military posts and line of communication with base at Duem. Al-ed Din assures me that the Arabs will close in on my route after the army has passed in sufficient force to prevent posts forwarding supplies. Besides, the pools of rain-water, the only supply, will dry up. Water not to be obtained by digging wells. I have no information regarding water between Serakna and Norabi, nor reliable information of the supply there. This causes me great anxiety."