Defeated at first by the latter, a war of conquest broke out in 1899, ending in 1902 with the overthrow of the Boer republics, after a brave and vigorous resistance on their part. Under the ambitious leadership of Cecil Rhodes and others, British dominion in South Africa was extended northward over the protectorates of Rhodesia and Basutoland, reaching, as stated, as far north as Lake Tanganyika and embracing an area of about 1,300,000 square miles. Other British colonial possessions in that continent include the large province of British East Africa, covering 520,000 square miles, a large area in Somaliland and possessions on the west coast of 150,000 square miles area. To these, in a minor sense of possession, should be added Egypt, now extending to British East Africa. We have mentioned the respective regions held by other European nations in Africa, France surpassing Great Britain in colonial area though not in population. Among the French African possessions are included the great island of Madagascar, lying off the east coast of the continent. Mention should be made here of the extensive and promising Congo Free State, under the suzerainty of Belgium. Covering eight hundred thousand square miles, it comprises the populous and richly agricultural center of Africa, its vast extension of navigable waters yielding communication through its every part. The occupation of Africa, at least that part of it which became British territory, was not consummated without hostile activities. The most recent of these was the long war between the Boer and British armies, the final success being a costly and not very profitable triumph of the British arms. Of other hostile relations may be mentioned the invasion of Abyssinia by a British army in 1867, the suppression of the revolt of Arabi Pasha in 1879, and the series of events arising from the Mahdist outbreak in 1880. THE MAHDI REBELLION IN EGYPT The latter events call for some mention; and need to be preceded by a statement of how Britain became dominant in Egypt. That country had broken loose in large measure from the rule of Turkey during the reign of the able and ambitious Mehemet Ali, who was made viceroy in 1840. In 1876 the independence of Egypt was much increased, and its rulers were given the title of khedive, or king. The powers of the khedives steadily increased, and in 1874–75 Ismail Pasha greatly extended the Egyptian territory, annexing the Soudan as far as Darfur, and finally to the shores of the lately discovered Victoria Nyanza. Egypt thus embraced the valley of the Nile practically to its source, presenting an aspect of immense length and great narrowness.