The Anglo-Zulu War, or simply the Zulu War, was fought in present-day South Africa from January to early July 1879 between forces of the British Empire and the Zulu Kingdom. Two famous battles of the war were the Zulu victory at Isandlwana and the British defence at Rorke's Drift.
Following the passing of the British North America Act 1867 forming a federation in Canada, Lord Carnarvon thought that a similar political effort, coupled with military campaigns, might lead to a ruling white minority over a black majority in South Africa. This would yield a large pool of cheap labour for the British sugar plantations and mines, and was intended to bring the African Kingdoms, tribal areas, and Boer republics into South Africa.
In 1874, Sir Bartle Frere was appointed as British High Commissioner for Southern Africa to effect such plans. Among the obstacles were the armed independent states of the South African Republic and the Zulu Kingdom.
Frere, on his own initiative, sent a provocative ultimatum on 11 December 1878 to Zulu King Cetshwayo. Upon its rejection, he ordered Lord Chelmsford to invade Zululand. The war had several particularly bloody battles, including an opening victory for the Zulu at the Battle of Isandlwana, followed by the defence of Rorke's Drift by a small British Garrison from an attack by a large Zulu force. However, the British eventually gained the upper hand at Kambula, before taking the Zulu capital of Ulundi. The British eventually won the war, ending Zulu dominance of the region. The British Empire made the Zulu Kingdom a protectorate and later annexed it in 1887.
The war dispelled prior colonial notions of British invincibility, due to their massive early defeats. Together with famines, diplomatic misadventures, and other unpopular wars overseas (such as the Second Anglo-Afghan War), it contributed to the ejection of Benjamin Disraeli's government from office in 1880, after only one term.
By the 1850s, the British Empire had colonies in southern Africa bordering on various Boer settlements, native African kingdoms such as the Zulus and the Basotho and numerous indigenous tribal areas and states. Various interactions with those groups followed an expansionist policy. Cape Colony was formed after the Anglo–Dutch Treaty of 1814 had permanently ceded the Dutch colony of Cape Town to Britain, and its territory expanded very substantially in the 19th century. Natal, in south-eastern Africa, was claimed by the British as a colony on 4 May 1843, after the British government had annexed the Boer Republic of Natalia. Matters were brought to a head when three sons (led by Mehlokazulu kaSihayo) and a brother of the Zulu inkosi Sihayo organized a raid into Natal and carried off two women who were under British protection.
The discovery of diamonds in 1867 near the Vaal River, some 550 mi (890 km) northeast of Cape Town, ended the isolation of the Boers in the interior and had a significant effect on events. The discovery triggered a diamond rush that attracted people from all over the world, which turned Kimberley into a town of 50,000 within five years and drew the attention of British imperial interests. In the 1870s, the British annexed West Griqualand, site of the Kimberley diamond discoveries.
In 1874 Lord Carnarvon, Secretary of State for the Colonies, who had brought about federation in Canada in 1867, thought that a similar scheme might work in South Africa, The South African plan called for a ruling white minority over a black majority, which would provide a large pool of cheap labour for the British sugar plantations and mines, Carnarvon, in an attempt to extend British influence in 1875, approached the Boer states of the Orange Free State and the Transvaal Republic and tried to organize a federation of the British and Boer territories but the Boer leaders turned him down.
In 1877, Sir Bartle Frere was made High Commissioner for Southern Africa by Lord Carnarvon. Carnarvon appointed Frere to the position on the understanding that he would work to enforce Carnarvon's confederation plan and Frere could then become the first British governor of a federated southern African dominion. Frere was sent to South Africa as High Commissioner to bring this plan about. One of the obstacles to such a scheme was the presence of the independent Boer states of the South African Republic, informally known as the Transvaal Republic and the Orange Free State, and the Kingdom of Zululand. Bartle Frere wasted no time in putting the scheme forward and manufacturing a casus belli against the Zulu by exaggerating the significance of a number of recent incidents.
By 1877, Sir Theophilus Shepstone, the British Secretary for Native Affairs in Natal, annexed the Transvaal Republic for Britain using a special warrant. The Transvaal Boers objected but as long as the Zulu threat remained, found themselves between two threats; they feared that if they took up arms to resist the British annexation, King Cetshwayo and the Zulus would take the opportunity to attack. The successive British annexations and in particular the annexation of West Griqualand caused a climate of simmering unease for the Boer republics.
Shepstone railed against the disruptive effect of allowing Cetshwayo's regime to remain. "Zulu power", he said, "is the root and real strength of all native difficulties in South Africa". In December 1877, he wrote to Carnarvon "Cetshwayo is the secret hope of every petty independent chief hundreds of miles from him who feels a desire that his colour shall prevail, and it will not be until this hope is destroyed that they will make up their minds to submit to the rule of civilisation". Earlier in October 1877, Shepstone had attended a meeting with Zulu leaders near the Blood River to resolve the land dispute between the Zulus and the Boers. He suggested a compromise with the Boers and the meeting broke up without clear resolutions. He turned against the Zulus with vengeance, saying he had come into possession of "the most incontrovertible, overwhelming and clear evidence" never previously disclosed, for supporting the claims of the Boers. He rejected Zulu claims as "characterised by lying and treachery to an extent that I could not have believed even savages are capable of".
Shepstone, in his capacity as British governor of Natal, had expressed concerns about the Zulu army under King Cetshwayo and the potential threat to Natal – especially given the adoption by some of the Zulus of old muskets and other out-of-date firearms. In his new role of Administrator of the Transvaal, he was now responsible for protecting the Transvaal and had direct involvement in the Zulu border dispute from the side of the Transvaal. Persistent Boer representations and Paul Kruger's diplomatic manoeuvres added to the pressure. There were incidents involving Zulu paramilitary actions on either side of the Transvaal/Natal border, and Shepstone increasingly began to regard King Cetshwayo, as having permitted such "outrages", and to be in a "defiant mood". King Cetshwayo now found no defender in Natal save the bishop of Natal, John Colenso.
Colenso advocated for native Africans in Natal and Zululand who had been unjustly treated by the colonial regime in Natal. In 1874 he took up the cause of Langalibalele and the Hlubi and Ngwe tribes in representations to the Colonial Secretary, Lord Carnarvon. Langalibalele had been falsely accused of rebellion in 1873 and, following a charade of a trial, was found guilty and imprisoned on Robben Island. In taking the side of Langalibalele against the colonial regime in Natal and Theophilus Shepstone, the Secretary for Native Affairs, Colenso found himself even further estranged from colonial society in Natal.
Bishop Colenso's concern about the misleading information that was being provided to the Colonial Secretary in London by Shepstone and the Governor of Natal prompted him to champion the cause of the Zulus against Boer oppression and official encroachments. He was a prominent critic of Frere's efforts to depict the Zulu kingdom as a threat to Natal. Colenso's campaigns revealed the racialist foundation underpinning the colonial regime in Natal and made him enemies among the colonists.