The Boer War: KS3 History Explained

The Boer War (1899–1902) was fought between the British Empire and two independent Boer republics in southern Africa — the South African Republic (Transvaal) and the Orange Free State. Britain eventually won, but the tactics used, including concentration camps holding Boer civilians, provoked fierce criticism at home and abroad.

Who were the Boers and what were they fighting for?

The Boers (from the Dutch word for "farmer") were descendants of Dutch, German, and French Huguenot settlers who had lived in southern Africa since the seventeenth century. When Britain took control of the Cape Colony in 1806, many Boers resented British rule — particularly the abolition of slavery across the Empire in 1833. Tens of thousands of Boers made the Great Trek (1835–40) into the interior, establishing independent republics free from British authority.

These republics had coexisted uneasily with British South Africa for decades when gold was discovered in the Transvaal in 1886. The discovery transformed the region's geopolitics. Thousands of foreign fortune-seekers ("Uitlanders," mainly British) flooded in, and British imperial strategists — particularly Cecil Rhodes and, later, Colonial Secretary Joseph Chamberlain — saw the Transvaal's gold wealth as something the Empire could not afford to leave in Boer hands.

What triggered the war?

Tension built throughout the 1890s. The Uitlanders in the Transvaal were denied voting rights by President Paul Kruger, and Britain claimed the right to intervene on their behalf. In 1895 Rhodes organised the disastrous Jameson Raid — an unauthorised military incursion into the Transvaal intended to trigger an Uitlander uprising. It failed embarrassingly and was condemned internationally, but poisoned relations further.

Negotiations in 1899 broke down over the franchise for Uitlanders. On 11 October 1899 the Boer republics issued an ultimatum to Britain and, when it was rejected, invaded British-held Natal and the Cape Colony first. Britain responded with massive military reinforcement, expecting a quick victory over what was seen as a minor force of farmers.

How did the war proceed?

The war unfolded in three phases:

Phase 1 — Early Boer successes (October–December 1899): The Boers, expert horsemen and marksmen fighting on familiar terrain, besieged British garrisons at Ladysmith, Mafeking, and Kimberley. "Black Week" in December 1899 saw three British defeats in rapid succession, shocking public opinion at home.

Phase 2 — British conventional advance (January–September 1900): Field Marshal Lord Roberts arrived with huge reinforcements. Mafeking was relieved in May 1900 — provoking wild celebrations in Britain — and the Boer capitals, Bloemfontein and Pretoria, were captured. Britain formally annexed both republics. The conventional war appeared over.

Phase 3 — Guerrilla war (September 1900 – May 1902): Rather than surrendering, Boer "bitter-enders" under generals such as De Wet and Smuts waged a guerrilla campaign, using their knowledge of the veld to evade a much larger army. The British response was the strategy that defined the war's moral legacy.

What happened in the concentration camps?

To deny the Boer guerrillas food, shelter, and information, the British adopted a scorched-earth policy: burning farmhouses, destroying crops, and slaughtering livestock. Women, children, and elderly Boers were swept up and placed in camps — termed "concentration camps" (from the Spanish reconcentrado policy used in Cuba in the 1890s).

Conditions in the camps were catastrophically inadequate: overcrowded tents, contaminated water, insufficient food, and almost no medical care. Disease, particularly measles, typhoid, and dysentery, swept through the population.

Emily Hobhouse, a British welfare activist, visited the camps in early 1901 and reported their conditions in shocking detail. Her report was initially suppressed and her motives attacked by the government. The official Fawcett Commission sent to investigate confirmed Hobhouse's findings and forced improvements. By the war's end approximately 28,000 Boers — the majority of them children — had died in the camps. Separate camps for Black South Africans, even less well documented, held perhaps 115,000 people, of whom around 14,000 died.

What did the war reveal about the British Empire?

The Boer War opened fissures that imperial triumphalism had concealed. Several consequences shaped early twentieth-century Britain:

Physical fitness crisis: Army recruits from industrial cities were found to be alarmingly unhealthy. The Committee on Physical Deterioration (1904) and subsequent reforms — school meals, health inspections — were direct responses to what the war revealed about working-class nutrition and health.

"Pro-Boer" opposition: A significant section of British public opinion, including Liberal politicians such as Lloyd George and reformers such as Hobhouse, opposed the war's conduct. The concentration camp scandal gave anti-imperialists a powerful moral argument. Concepts of "ethical imperialism" — Empire justified only if it genuinely benefited subject peoples — were forced into mainstream debate.

International isolation: During the war, European powers — particularly Germany — were openly hostile to Britain. The war demonstrated that Britain's vaunted "splendid isolation" left it diplomatically exposed, contributing to the decision to seek alliances with France (Entente Cordiale, 1904) and Russia (1907) that shaped the alignments of World War One.

Frequently asked questions

What happened to the Boers after they lost the war?

The Peace of Vereeniging (May 1902) incorporated the Boer republics into the British Empire. Britain paid £3 million in compensation for farm damage and promised eventual self-government. This promise was kept remarkably quickly: the Transvaal received responsible government in 1906, the Orange River Colony in 1907, and in 1910 the Union of South Africa — combining the former Boer republics with the Cape Colony and Natal — was created as a self-governing dominion. The Union's constitution excluded Black South Africans from meaningful political participation, laying institutional groundwork for apartheid in 1948.

How do historians assess Emily Hobhouse's evidence?

Emily Hobhouse is an interesting source case. She visited camps between December 1900 and May 1901, gathered testimony from inmates, and published damning reports. Proponents of the camps attacked her as unpatriotic and claimed she exaggerated. The Fawcett Commission — sent partly to discredit her — instead confirmed the essentials of her findings. This makes Hobhouse an unusual case of a dissident observer whose criticised report turned out, on independent verification, to be essentially accurate. It is a reminder that credibility is not the same as official sanction.

Was the Boer War the first time the term "concentration camp" was used?

Historians trace the term to the Spanish policy of "reconcentration" in Cuba (1896–97), where General Weyler herded Cuban civilians into camps to separate them from insurgents. The British adopted both the tactic and a similar term. The camps in southern Africa preceded the Nazi concentration camps of the 1930s–40s by decades and had no genocidal intent — but the humanitarian catastrophe they produced is not in doubt.

How does the Boer War fit into the story of the British Empire?

The Boer War is often seen as a turning point: the moment when confidence in imperial expansion began to crack. The unexpected difficulty of defeating farmers, the moral scandal of the camps, the revelation of British soldiers' poor health, and the international hostility Britain faced all punctured the easy imperialism of the 1880s–90s. It did not end the Empire, but it changed the terms of debate about what the Empire was for and how it should be run.

Develop your own argument about the Boer War's legacy using primary sources with Professor Pi at aitutors.me.