The Battle of Witpoort was a battle during the Second Anglo-Boer War. Major commanded the detachment of the Royal Irish Fusiliers at Witpoort which was attacked on 16 July 1900, his orders being to "hold his position at all costs". The Boers called on Major Munn to surrender, but, scornfully refusing, he held out from daybreak till 2 pm, when the Canadian forces mounted a counterattack and the Boers retired. The battle became famous because of the death of Harold Lothrop Borden.