The Yeomanry all did well, especially the 5th and 10th battalions. So also did the Australians and the Loyal North Lancashires. The British casualties amounted to sixteen killed and thirty-four wounded, while the Boers left eighteen of their dead upon the position which they had abandoned. Lord Methuen's little force returned to Klerksdorp, having deserved right well of their country. From Klerksdorp Methuen struck back westwards to the south of his former route, and on March 14th he was reported at Warrenton. Here also in April came Erroll's small column, bringing with it the garrison and inhabitants of Hoopstad, a post which it had been determined, in accordance with Lord Kitchener's policy of centralisation, to abandon.
In the month of January, 1901, there had been a considerable concentration of the Transvaal Boers into that large triangle which is bounded by the Delagoa railway line upon the north, the Natal railway line upon the south, and the Swazi and Zulu frontiers upon the east. The bushveld is at this season of the year unhealthy both for man and beast, so that for the sake of their herds, their families, and themselves the burghers were constrained to descend into the open veld. There seemed the less objection to their doing so since this tract of country, though traversed once both by Buller and by French, had still remained a stronghold of the Boers and a storehouse of supplies. Within its borders are to be found Carolina, Ermelo, Vryheid, and other storm centres. Its possession offers peculiar strategical advantages, as a force lying there can always attack either railway, and might even make, as was indeed intended, a descent into Natal. For these mingled reasons of health and of strategy a considerable number of burghers united in this district under the command of the Bothas and of Smuts.
Their concentration had not escaped the notice of the British military authorities, who welcomed any movement which might bring to a focus that resistance which had been so nebulous and elusive. Lord Kitchener having once seen the enemy fairly gathered into this huge cover, undertook the difficult task of driving it from end to end. For this enterprise General French was given the chief command, and had under his orders no fewer than seven columns, which started from different points of the Delagoa and of the Natal railway lines, keeping in touch with each other and all trending south and east. A glance at the map would show, however, that it was a very large field for seven guns, and that it would need all their alertness to prevent the driven game from breaking back. Three columns started from the Delagoa line, namely, Smith-Dorrien's from Wonderfontein (the most easterly), Campbell's from Middelburg, and Alderson's from Eerstefabrieken, close to Pretoria. Four columns came from the western railway line: General Knox's from Kaalfontein, Major Allenby's from Zuurfontein (both stations between Pretoria and Johannesburg), General Dartnell's from Springs, close to Johannesburg, and finally General Colville (not to be confused with Colvile) from Greylingstad in the south. The whole movement resembled a huge drag net, of which Wonderfontein and Greylingstad formed the ends, exactly one hundred miles apart. On January 27th the net began to be drawn. Some thousands of Boers with a considerable number of guns were known to be within the enclosure, and it was hoped that even if their own extreme mobility enabled them to escape it would be impossible for them to save their transport and their cannon.
Each of the British columns was about 2000 strong, making a total of 14,000 men with about fifty guns engaged in the operations. A front of not less than ten miles was to be maintained by each force. The first decided move was on the part of the extreme left wing, Smith-Dorrien's column, which moved south on Carolina, and thence on Bothwell near Lake Chrissie. The arduous duty of passing supplies down from the line fell mainly upon him, and his force was in consequence larger than the others, consisting of 8500 men with thirteen guns.