 The Futa Jallon is the <unk> region where the Senegal and Gambia rivers rise . In the fifteenth century the valleys were occupied by Mandé peoples - Susu and Yalunka farmers . Around that time , Fulbe herders began moving into the region , grazing their livestock on the <unk> . At first they peacefully accepted a subordinate position to the Susu and Yalunka . The Fulbe and Mandé peoples <unk> to some extent , and the more sedentary of the Fulbe came to look down on their pastoral cousins . 
