 In 1879, the same year as the Zulu war, Mbandzeni aided the British who were now controlling the Transvaal to defeat Sekhukhune and to dismantle his kingdom.In return for his assistance, Swaziland's independence was to be guaranteed perpetually and Swaziland would be protected from Boer and Zulu encroachment.In 1881 the Pretoria Convention established nominal British suzerainty over the re-established Transvaal State; article 24 guaranteed the independence of Swaziland, its boundary and Swazi people in their country as recognised by both Britain and the Transvaal.