In 1893 Tippu Tip advised Rumaliza to retire from the trade, but Rumaliza first had to look after his people at Lake Tanganyika.[13] Rumaliza raised a strong force, which clashed with Dhanis' column on 15 October 1893 causing the death of two European leaders and fifty of their soldiers. On 19 October 1893 Rumaliza attacked a position one day's march from Kasongo.[24] Dhanis concentrated his forces and defeated Rumaliza. A column under Lothaire pursued him to the north of Lake Tanganyika, destroying his fortified positions along the route.