There seems to have been no valid reason for this movement. The British Government, outside of certain fundamental principles of morality and administration, desired to give the farmers every possible latitude. It had no wish for territorial expansion, and would never have interfered at all if the aggressive policy of the Boers meeting the wild instincts of the Bantu, or Zulus, half-way, had not drenched the region with blood. But the deterioration of the Boer character, or rather the expression of that character in a sphere where it was practically uncontrolled, had assumed a form in which the possession of large tracts of land and the compulsory service of natives appeared as absolute essentials of life, which they had the right to take by force--in the same way as Moselkatze and Tshaka had done previously and with apparently no higher motives than those which had actuated savage chiefs at war with weaker tribes. Moreover, they had failed signally in this first effort at self-government, and the rivalry of leaders like Hendrick Potgieter, Gerrit Maritz and Andries Pretorius had not only helped to prevent the establishment of any form of administration amongst the people capable of levying taxes and compelling obedience to the state, but had made constant raids upon neighboring native tribes appear almost essential to the holding together of the scattered communities in a common bond of conflict and territorial acquisition. [Sidenote: The Trek North of the Vaal River] With the failure to acquire and hold Durban and to rule themselves or the regions of Natal which they had taken from the Zulus ended the first Boer effort to reach the sea and to establish Dutch independent communities in touch with the external world. The bulk of the farmers, as already stated, trekked north of the Orange or the Vaal. Here they found conditions, in 1845-47, which were scarcely less perplexing and troubled than their own had been. Over an area of some 700 miles long and 300 wide was established a Dutch population of about fifteen thousand persons which was constantly at war with the natives, and, as a result of losses in this connection, did not increase greatly in numbers despite the numerous accessions from Cape Colony and Natal. Nominally, and by British theory, they were still British subjects; practically, from the Orange to the Limpopo they were independent communities whom the Colonial Office would have preferred to forget altogether rather than to assert claims over or make demands upon. But their relation of permanent and bitter hostility towards the natives appears to have made absolute British neutrality impossible. Accordingly, in 1843, an effort was made to further isolate the Boers from Cape Colony, and "buffer states" of native or half-breed tribes were established and recognized; much in the same way as in the days of the Kosa tribes on the eastern frontier of the Colony. Then, however, it was for the protection of