The British achieved a pyrrhic victory in the Second Boer War (1899-1902), annexing the Boer republics but at enormous human, financial, and reputational cost.

Key Military Outcome

British forces, under commanders like Lords Roberts and Kitchener, overcame initial defeats and Boer guerrilla tactics to capture key territories. By mid-1900, they overran the Orange Free State and annexed the Transvaal, leading to the Treaty of Vereeniging in 1902 that ended Boer independence. This victory expanded British control in South Africa, paving the way for the Union of South Africa in 1910 under imperial oversight.

Human and Economic Toll

The war claimed over 22,000 British lives, with two-thirds from disease rather than combat, alongside 120,000 total casualties from Britain and its empire. Costs exceeded £210 million (equivalent to over £25 billion today), straining imperial resources and sparking domestic criticism.

Controversial Tactics

To counter Boer commandos, Britain employed scorched-earth policies and concentration camps, where 28,000 Boer civilians—mostly women and children—died from starvation and disease, fueling international outrage. These measures broke Boer resistance but tarnished Britain's moral standing, as noted in historical analyses.

Long-Term Legacy

While a strategic win solidified British dominance in southern Africa, the war exposed imperial vulnerabilities, boosted Afrikaner nationalism, and influenced future conflicts like World War I. Public opinion in Britain shifted from jingoistic fervor to war-weariness, as seen in period media and later forums.

TL;DR : British victory with annexation, but staggering losses and ethical stains made it a costly "win."

Information gathered from public forums or data available on the internet and portrayed here.