The War 211 If the menace of the Turks on the Eastern frontier of Egypt was overestimated, the same may be said of the menace of the Senussi on its Western frontier. This organisation had, since its foundation a century before, occupied the desert oases of the Eastern Sahara and the coastal villages between Egypt and Tripoli. Its remote seclusion and sinister reputation had imposed on the imagination both of East and West, and had impressed the world with an importance justified neither by its military strength of some thousand savage warriors nor by its fanatical faith in a puritanical Mahomedanism, nor by its political programme—an exclusion of everything European. The French had come into collision with it in the south, the Italians in the north. Both had found it sufficiently formidable to leave unmolested in its desert fastness. But the possibilities of the ' * brotherhood J* as a weapon for irritating and immobilising British forces in Egypt was not overlooked by the Germans. The Senussi Chief, Sid Ahmed, was conceited, and put a high price on his co-operation. The British had neglected to subsidise him, and German submarine power in the Mediterranean was by 1915 able to supply the Senussi with munitions and money. The Cairo Intelligence Service, occupied with its ramifications in more distant fields, was caught napping. The Senussi struck at Sollum and other Egyptian posts on the coast, which they occupied (November, 1915). These points were, however, recovered without difficulty (March, 1916) after a series of skirmishes, in which the modern machinery of war decisively demonstrated that desert guerilla had had its day. Thereafter the Senussi were only important as occupying large forces in patrolling the Western frontier against raids. Meantime, after a visit of Enver to the Sinai front.