Whilst our attention was fixed principally upon the east in making provision for the enormous influx expected from Europe and America, an unexpected complication was brought about in the west by means of our allies, the Masai. In order to find a new field for their love of adventure, which they could no longer bring into play against the Swahili, Wa-Duruma, Wa-Teita, Wa-Taveta, and Wa-Kikuyu, whom we had made their allies, the Masai fell upon the Nangi and Kavirondo, who live west of Lake Baringo, and drove off a large number of their cattle. But when the patience of these large tribes was exhausted, they forgot for a time their mutual animosities, turned the tables upon the Masai, and overran their country. In this war the Masai suffered a great deal, for their opponents, though not equal to them in bravery, far surpassed them in numbers. If the Masai had but got together in time, they might have easily collected in their own country an army equal to the 18,000 Kavirondo and Nangi who took the field against them: but they were thrown into confusion by the unexpected attack, got together a poor 7,000 _el-moran_, and suffered utter defeat in two sanguinary engagements. More than a thousand of their warriors fell, and the swarms of the victors poured continuously over the whole country between the Lakes Baringo and Naivasha, sweeping all the Masai before them, and getting an immense booty in women, children, and cattle. This was at the beginning of May; and the Masai, who knew not how to escape from their exasperated foes except by our aid, sent couriers who reached the Kenia with their petitions for help on the 10th of the month.