On 2 September 1898, Major-General Horatio Herbert Kitchener fought his most famous action of his military career, the Battle of Omdurman. It was the finale of a long campaign against the Mahdists of Sudan, and the even longer awaited avenging of General Charles Gordon’s killing over a decade earlier. Thousands of fanatical Islamic warriors lay dead or wounded in the burning sands, while their defeated leader, the Khalifa, scurried off...