The preparations for this fresh advance against the Mahdi were made with care, and on an extensive scale. Several regiments were sent from Egypt, and in the spring of the year a permanent camp was established for their accommodation at Omdurman, on the western bank of the Nile, opposite Khartoum. Here, by the end of June 1883, was assembled a force officially computed to number 7000 infantry, 120 cuirassiers, 300 irregular cavalry, and not fewer than 30 pieces of artillery, including rockets and mortars. Colonel Hicks was given the nominal command, several English and other European officers were appointed to serve under him, and the Khedive specially ordered the Governor-General to accompany the expedition that was to put an end to the Mahdi's triumph. Such was the interest, and, it may be added, confidence, felt in the expedition, that two special correspondents, one of whom was Edmond O'Donovan, who had made himself famous a few years earlier by reaching the Turcoman stronghold of Merv, were ordered to accompany it, and report its achievements.
The Mahdi learnt in good time of the extensive preparations being made for this expedition, but he was not dismayed, because all the fighting tribes of Kordofan, Bahr Gazelle, and Darfour were now at his back, and he knew that he could count on the devotion of 100,000 fanatical warriors. Still, he and his henchman Abdullah, who supplied the military brains to the cause, were not disposed to throw away a chance, and the threatening appearance of the Egyptian military preparations led them to conceive the really brilliant idea of stirring up trouble in the rear of Khartoum. For this purpose a man of extraordinary energy and influence was ready to their hand in Osman Digma, a slave-dealer of Souakim, who might truly be called the Zebehr of the Eastern Soudan. This man hastened to Souakim as the delegate of the Mahdi, from whom he brought special proclamations, calling on the tribes to rise for a Holy War. Although this move subsequently aggravated the Egyptian position and extended the military triumphs of the Mahdi, it did not attain the immediate object for which it was conceived, as the Hicks Expedition set out on its ill-omened march before Osman had struck a blow.
The power of the Mahdi was at this moment so firmly established, and his reputation based on the double claim of a divine mission and military success so high that it may be doubted whether the 10,000 men, of which the Hicks force consisted when the irregulars raised by the Governor-General had joined it at Duem, would have sufficed to overcome him even if they had been ably led, and escaped all the untoward circumstances that first retarded their progress and then sealed their fate. The plan of campaign was based on a misconception of the Mahdi's power, and was carried out with utter disregard of prudence and of the local difficulties to be encountered between the Nile and El Obeid. But the radical fault of the whole enterprise was a strategical one. The situation made it prudent and even necessary for the Government to stand on the defensive, and to abstain from military expeditions, while the course pursued was to undertake offensive measures in the manner most calculated to favour the chances of the Mahdi, and to attack him at the very point where his superiority could be most certainly shown.
But quite apart from any original error as to the inception of the campaign, which may fairly be deemed a matter of opinion, there can be no difference between any two persons who have studied the facts that the execution of it was completely mismanaged. In the first place the start of the expedition was delayed, so that the Mahdi got ample warning of the coming attack. The troops were all in the camp at Omdurman in June, but they did not reach Duem till September, and a further delay of two months occurred there before they began their march towards El Obeid. That interval was chiefly taken up with disputes between Hicks and his Egyptian colleagues, and it is even believed that there was much friction between Hicks and his European lieutenants.
The first radical error committed was the decision to advance on El Obeid from Duem, because there were no wells on that route, whereas had the northern route via Gebra and Bara been taken, a certain supply of water could have been counted on, and still more important, the co-operation of the powerful Kabbabish tribe, the only one still hostile to the Mahdi, might have been secured. The second important error was not less fatal. When the force marched it was accompanied by 6000 camels and a large number of women. Encumbered in its movements by these useless impedimenta, the force never had any prospect of success with its active enemy. As it slowly advanced from the Nile it became with each day's march more hopelessly involved in its own difficulties, and the astute Mahdi expressly forbade any premature attack to be made upon an army which he clearly saw was marching to its doom.
On the 1st November 1883, when the Egyptians were already disheartened by the want of water, the non-arrival of reinforcements from the garrisons near the Equator, which the Governor-General had rashly promised to bring up, and the exhausting nature of their march through a difficult country, the Mahdi's forces began their attack. Concealed in the high grass, they were able to pour in a heavy fire on the conspicuous body of the Egyptians at short range without exposing themselves. But notwithstanding his heavy losses, Hicks pressed on, because he knew that his only chance of safety lay in getting out of the dense cover in which he was at such a hopeless disadvantage. But this the Mahdi would never permit, and on 4th November, when Hicks had reached a place called Shekan, he gave the order to his impatient followers to go in and finish the work they had so well begun. The Egyptian soldiers seem to have been butchered without resistance. The Europeans and the Turkish cavalry fought well for a short time, but in a few minutes they were overpowered by superior numbers. Of the whole force of 10,000 men, only a few individuals escaped by some special stroke of fortune, for nearly the whole of the 300 prisoners taken were subsequently executed. Such was the complete and appalling character of the destruction of Hicks's army, which seemed to shatter at a single blow the whole fabric of the Khedive's power in the Soudan, and rivetted the attention of Europe on that particular quarter of the Dark Continent.
The consequences of that decisive success, which became known in London three weeks after it happened, were immediate throughout the region wherein it occurred. Many Egyptian garrisons, which had been holding out in the hope of succour through the force that Hicks Pasha was bringing from Khartoum, abandoned hope after its destruction at Shekan, and thought only of coming to terms with the conqueror. Among these was the force at Dara in Darfour under the command of Slatin Pasha. That able officer had held the place for months under the greatest difficulty, and had even obtained some slight successes in the field, but the fate of the Hicks expedition convinced him that the situation was hopeless, and that his duty to the brave troops under him required the acceptance of the honourable terms which his tact and reputation enabled him to secure at the hands of the conqueror. Slatin surrendered on 23rd December 1883; Lupton Bey, commander in the Bahr Gazelle, about the same time, and these successes were enhanced and extended by those achieved by Osman Digma in the Eastern Soudan, where, early in February 1884, while Gordon was on his way to Khartoum, that leader inflicted on Baker Pasha at Tokar a defeat scarcely less crushing than that of Shekan.
By New Year's Day, 1884, therefore, the power of the Mahdi was triumphantly established over the whole extent of the Soudan, from the Equator to Souakim, with the exception of Khartoum and the middle course of the Nile from that place to Dongola. There were also some outlying garrisons, such as that at Kassala, but the principal Egyptian force remaining was the body of 4000 so-called troops, the less efficient part, we may be sure, of those available, left behind at Khartoum, under Colonel de Coetlogon, by Hicks Pasha, when he set out on his unfortunate expedition. If the power of the Mahdi at this moment were merely to be measured by comparison with the collapse of authority, courage, and confidence of the titular upholders of the Khedive's Government, it might be pronounced formidable. It had sufficed to defeat every hostile effort made against it, and to practically annihilate all the armies that Egypt could bring into the field. Its extraordinary success was no doubt due to the incompetency, over-confidence, and deficient military spirit and knowledge of the Khedive's commanders and troops. But, while making the fullest admission on these points, it cannot be disputed that some of the elements in the Mahdi's power would have made it formidable, even if the cause of the Government had been more worthily and efficiently sustained. There is no doubt that, in the first place, he appealed to races which thought they were overtaxed, and to classes whose only tangible property had been assailed and diminished by the Anti-Slavery policy of the Government. Even if it would be going too far to say that Mahomed Ahmed, the long-looked-for Mahdi, was only a tool in the hands of secret conspirators pledged to avenge Suleiman, to restore Zebehr, and to bring back the good old times, when a fortune lay in the easy acquisition of human ivory, there is no doubt that the backbone of his power was provided by those followers of Suleiman, whom Gordon had broken up at Shaka and driven from Dara. But the Mahdi had supplied them in religious fanaticism with a more powerful incentive than pecuniary gain, and when he showed them how easily they might triumph over their opponents, he inspired them with a confidence which has not yet lost its efficacy.
In 1884 all these inducements for the tribes of the Soudan to believe in their religious leader were in their pristine strength. He had succeeded in every thing he undertook, he had armed his countless warriors with the weapons taken from the armies he had destroyed, and he had placed at the disposal of his supporters an immense and easily-acquired spoil. The later experiences of the Mahdists were to be neither so pleasant nor so profitable, but at the end of 1883 they were at the height of their confidence and power. It was at such a moment and against such a powerful adversary that the British Government thought it right to take advantage of the devotion and gallantry of a single man, to send him alone to grapple with a difficulty which several armies had, by their own failure and destruction, rendered more grave, at the same time that they established the formidable nature of the rebellion in the Soudan as an unimpeachable fact instead of a disputable opinion. I do not think his own countrymen have yet quite appreciated the extraordinary heroism and devotion to his country which Gordon showed when he rushed off single-handed to oppose the ever-victorious Mahdi at the very zenith of his power.
In unrolling the scroll of events connected with an intricate history, it next becomes necessary to explain why Gordon voluntarily, and it may even be admitted, enthusiastically, undertook a mission that, to any man in his senses, must have seemed at the moment at which it was undertaken little short of insanity. Whatever else may be said against the Government and the military authorities who suggested his going, and availed themselves of his readiness to go, to Khartoum, I do not think there is the shadow of a justification for the allegation that they forced him to proceed on that romantic errand, although of course it is equally clear that he insisted as the condition of his going at all that he should be ordered by his Government to proceed on this mission. Beyond this vital principle, which he held to all his life in never volunteering, he was far too eager to go himself to require any real stirring-up or compulsion. It was even a secret and unexpressed grievance that he should not be called upon to hasten to the spot, which had always been in his thoughts since the time he had left it. He could think of nothing else; in the midst of other work he would turn aside to discuss the affairs of Egypt and the Soudan as paramount to every other consideration; and when a great mission, like that to the Congo, which he could have made a turning-point in African history, was placed in his hands, he could only ask for "a respite," and, with the charm of the Sphinx strong upon him, rushed on his fate in a chivalrous determination to essay the impossible. But was it right or justifiable that wise politicians and experienced generals should take advantage of such enthusiasm and self-sacrifice, and let one man go unaided to achieve what thousands had failed to do?