 Complete the following phrase:  Mohammed Ahmed al-Mahdi enlisted the people of Sudan in what he declared a jihad against the administration that was based in Khartoum, which was dominated by Egyptians and Turks. The Khartoum government initially dismissed the Mahdis revolution; he defeated two expeditions sent to capture him in the course of a year. The Mahdis power increased, and his call spread throughout the Sudan, with his movement becoming known as the Ansar. During the same period, the Urabi revolution broke out in Egypt, with the British occupying the country in 1882. Britain appointed Charles Gordon as General-Governor of Sudan. Months after his arrival in Khartoum and after several battles with the Mahdi rebels, Mahdist forces 