From Diamonds, Gold, and War: The British, the Boers, and the Making of South Africa, by Martin Meredith (PublicAffairs, 2008), Kindle pp. 63-65:
While Kimberley’s magnates were manoeuvring for advantage, Britain’s imperial ambitions were also on the march. In 1874, a new Tory government led by Benjamin Disraeli had come to power with aims of extending the realms of the British empire and reversing the years of fiscal rectitude and frugality overseas pursued by the previous Gladstone administration. Disraeli proudly called himself ‘an Imperialist’ and appointed as colonial secretary a like-minded expansionist, the Earl of Carnarvon. Carnarvon’s main preoccupation was imperial defence. He regarded the Cape and its naval facilities at Simon’s Bay as being the most important link in the imperial network outside Britain itself, upon which the safety of the whole empire might one day depend. In the words of a Royal Commission on Colonial Defence chaired by Carnarvon, the Cape route was ‘essential to the retention by Great Britain of her possessions in India, Mauritius, Ceylon, Singapore, China and even Australasia’. It needed to be ‘maintained at all hazards and irrespective of cost’. Strategic considerations overrode financial concerns. Furthermore, the Cape provided a vital commercial link. Despite the opening of the Suez Canal in 1869, one seventh of all British trade annually passed the Cape. In the event of a war affecting the Mediterranean and the Suez Canal, the Cape route would become even more important.
What concerned Carnarvon was the chaotic character of the interior of southern Africa, which offered opportunities for other European powers to meddle and undermine British supremacy in the region. In sum, southern Africa consisted of three separate British colonies, two Boer republics and a troublesome assortment of African chiefdoms, notably the Xhosa, the Zulu, the Swazi, the Pedi, the Venda, the Tswana and the Sotho. It was an area of ill-defined borders where armed conflict appeared to be endemic. Carnarvon was alarmed in particular by the Transvaal’s determined efforts to expand eastwards and gain access to the sea at Delagoa Bay, which would enable it to escape from commercial dependence on colonial ports and break away from British domination. He was adamant that the security of the Cape could not be assured unless Britain controlled the interior.
To forestall the Transvaal’s moves, Britain claimed possession of Delagoa Bay for itself. But when the matter was put to arbitration, Britain lost to Portugal. The Transvaal meanwhile sought to involve other European powers. In 1875, President Thomas Burgers toured Europe in search of German and Dutch aid to build a railway joining Pretoria to Delagoa Bay. Carnarvon concluded that the sooner the Transvaal was incorporated into the British orbit the better.
As colonial secretary in a previous British administration, Carnarvon had gained the credit for launching Canada as a self-governing dominion by amalgamating seven independent provinces inhabited by French-speaking and English-speaking colonists with different traditions and mutual distrust; and he assumed that a similar feat could be accomplished in southern Africa. Carnarvon’s plan was to construct a confederation of its disparate peoples that would serve as a bastion of the British empire and protect both its strategic and commercial interests.
The advantages of confederation, Carnavon told the cabinet, were ‘very obvious’. It would encourage the flow of European immigration and capital; provide a more effective administration at less expense; and reduce the likelihood of demands for aid in the form of money or troops. Furthermore, it would assist the development of ‘a uniform, wise and strong policy’ towards ‘the native question’. In sum, confederation would ensure a great leap forward.
Carnarvon found few willing accomplices in the region, however. There were too many old grievances, too much distrust. For the Boer republics, cooperation with Britain meant only ‘die juk van Engeland’ - ‘the yoke of England’. Carnarvon managed to cobble together a conference in London in August 1876 attended by a variety of delegates from southern Africa, but made no headway.