The New Cavalry Brigade became almost complete at Hopetown, as the brigadier was able to collect his last missing squadron of the 21st King's Dragoon Guards, which hitherto had been taking part in the De Wet hunt with another column. A portion of the Mount Nelson Light Horse, however, was still missing; but the brigadier did not worry about them, and felt himself complete, as he took the precaution to issue orders that he was about to proceed by rail to Jagersfontein Road. But, as the narrative of the next forty-eight hours is to show, the military system prevailing in South Africa was such that it was only by a miracle that the most sagacious of leaders were able to accomplish any exceptional result by strategy. The brigadier had schemed to bring about a result which could only be arrived at by the most rigid concealment of plan and direction. It must be borne in mind that the Boers at this period of the campaign had the most perfect system of intelligence. There was not a district in the Transvaal or Orange River Colony which was not under the command of a local commandant, who with a following of fifty to a hundred men maintained a system of observation-posts throughout the length and breadth of his district, and who apparently had the means of conveying to some central organisation early intelligence of the movement of every British column. This may appear to the casual observer as an enormous undertaking, but in reality it was nothing of the kind. It was absolutely essential to the Boer cause that a considerable portion of their less valuable fighting material should thus be distributed over the length and breadth of the guerilla area. Owing to the great distances to be traversed in South Africa, every Dutchman had a local knowledge of his own district which could never be acquired in a country of rapid communication such as England. To local men were apportioned the network of observation-hills in which the country abounds. They lived upon the hill-tops all day, and returned either to farms or other places of security during the night. Their method of inter-communication was either by Kaffirs or mounted messengers, and in this way news could travel by relay as easily and rapidly as it is carried by a similar system amongst the natives of India. Any Kaffir will dog-trot ten miles in two hours; consequently without much effort Boer information would travel a hundred and twenty miles in twenty-four hours. Added to this, every woman remaining upon a farm was of the nature of an intelligence agent, and after the women had been removed, for the most part to the concentration camps, the majority of Kaffir kraals served the same purpose. It was this means of information which made the Boer resistance possible: it was to this system of espionage that De Wet owed the success of his meteor-like career.