The Boer war (1899-1902) was an armed conflict fought between the forces of the British empire and the independent Boer states of the Transvaal and Orange free state. Though initially it took on the characteristics of a conventional armed conflict, it soon turned into an armed insurgency on behalf of the Boers, who mounted a successful guerrilla campaign once the British seized control of both territories in 1900. In the short term, the war spiralled into an embarrassing fiasco, with the world’s foremost imperial power of the time unable to defeat a group of better armed and well-trained farmers without resorting to publicly abominable scorched earth and concentration camp tactics.
Though the war was an undoubted wake up call for an overly self-confident empire, proving to be the catalyst for a wide range of military and public health reforms that strengthened Britain’s military capabilities come 1914, it detrimentally helped precipitate the largest reversal in British foreign policy since the end of the Napoleonic wars. The policy of splendid isolation had previously allowed Britain to successfully arbitrate between European conflicts without direct involvement, allowing for the Crimean war. The immediate aftermath of the Boer war exposed Britain’s vulnerability, especially to the rising imperial power of the German empire, resulting in rapprochement with France and Russia in 1904 and 1907. Ultimately, Britain’s entrance into the triple entente weakened its global standing, highlighting Britain’s inability to independently protect their interests as they had done so successfully in the 19th century, creating enemies out of nations where previously there had only been tension, and forcing their involvement in a war where they could have been the chief creditor as oppose to a debtor.