He was weak in mounted troops, and was opposed to an enemy of exceptional mobility who might attack his flank and rear if he exposed them. He had not that great preponderance of numbers which came to him later, and which enabled him to attempt a wide turning movement. One advantage he had, the possession of a more powerful artillery, but his heaviest guns were naturally his least mobile, and the more direct his advance the more effective would his guns be. For these or other reasons he determined upon a frontal attack on the formidable Boer position, and he moved out of Chieveley Camp for that purpose at daybreak on Friday, December 15th.
The force which General Buller led into action was the finest which any British general had handled since the battle of the Alma. Of infantry he had four strong brigades: the 2nd (Hildyard's) consisting of the 2nd Devons, the 2nd Queen's or West Surrey, the 2nd West Yorkshire, and the 2nd East Surrey; the 4th Brigade (Lyttelton's) comprising the 2nd Cameronians, the 3rd Rifles, the 1st Durhams, and the 1st Rifle Brigade; the 5th Brigade (Hart's) with the 1st Inniskilling Fusiliers, the 1st Connaught Rangers, 2nd Dublin Fusiliers, and the Border Regiment, this last taking the place of the 2nd Irish Rifles, who were with Gatacre. There remained the 6th Brigade (Barton's), which included the 2nd Royal Fusiliers, the 2nd Scots Fusiliers, the 1st Welsh Fusiliers, and the 2nd Irish Fusiliers--in all about 16,000 infantry. The mounted men, who were commanded by Lord Dundonald, included the 13th Hussars, the 1st Royals, Bethune's Mounted Infantry, Thorneycroft's Mounted Infantry, three squadrons of South African Horse, with a composite regiment formed from the mounted infantry of the Rifles and of the Dublin Fusiliers with squadrons of the Natal Carabineers and the Imperial Light Horse. These irregular troops of horse might be criticised by martinets and pedants, but they contained some of the finest fighting material in the army, some urged on by personal hatred of the Boers and some by mere lust of adventure. As an example of the latter one squadron of the South African Horse was composed almost entirely of Texan muleteers, who, having come over with their animals, had been drawn by their own gallant spirit into the fighting line of their kinsmen.
Cavalry was General Buller's weakest arm, but his artillery was strong both in its quality and its number of guns. There were five batteries (30 guns) of the Field Artillery, the 7th, 14th, 63rd, 64th, and 66th. Besides these there were no fewer than sixteen naval guns from H.M.S. 'Terrible'--fourteen of which were 12-pounders, and the other two of the 4.7 type which had done such good service both at Ladysmith and with Methuen. The whole force which moved out from Chieveley Camp numbered about 21,000 men.
The work which was allotted to the army was simple in conception, however terrible it might prove in execution. There were two points at which the river might be crossed, one three miles off on the left, named Bridle Drift, the other straight ahead at the Bridge of Colenso. The 5th or Irish Brigade was to endeavour to cross at Bridle Drift, and then to work down the river bank on the far side so as to support the 2nd or English Brigade,--which was to cross at Colenso. The 4th Brigade was to advance between these, so as to help either which should be in difficulties. Meanwhile on the extreme right the mounted troops under Dundonald were to cover the flank and to attack Hlangwane Hill, a formidable position held strongly by the enemy upon the south bank of the Tugela. The remaining Fusilier brigade of infantry was to support this movement on the right. The guns were to cover the various attacks, and if possible gain a position from which the trenches might be enfiladed. This, simply stated, was the work which lay before the British army. In the bright clear morning sunshine, under a cloudless blue sky, they advanced with high hopes to the assault. Before them lay the long level plain, then the curve of the river, and beyond, silent and serene, like some peaceful dream landscape, stretched the lines and lines of gently curving hills.