The River War: An Historical Account of the Reconquest of the Soudan, by Winston Churchill, is a history of the conquest of the Sudan between 1896 and 1899 by Anglo-Egyptian forces led by Lord Kitchener. He defeated the Sudanese Dervish forces, led by Khalifa Abdallahi ibn Muhammad, heir to the self-proclaimed Mahdi Muhammad Ahmad, who had vowed to conquer Egypt and drive out the Ottomans. The fir... Wikipedia