What two opponents confronted in the boer war of 1899-1902?

The Boer War of 1899-1902 was fought between the British Empire and two Boer republics: the South African Republic (Transvaal) and the Orange Free State. The conflict arose from tensions over British imperial expansion and the rights of Dutch-speaking settlers (Boers) in the region. The war is notable for its guerrilla tactics employed by the Boers and the extensive use of concentration camps by the British. Ultimately, the war resulted in British victory and the eventual unification of South Africa.