Origins of Hutu, Tutsi and Twa bloodlines is thus questioned. Origins of Hutu, Tutsi and Twa The origins of the Tutsi and Hutu people is a major issue in the histories of Rwanda and Burundi, as well as the Great Lakes region of Africa. The relationship between the two modern populations is thus, in many ways, derived from the perceived origins and claim to "Rwandan-ness". The largest conflicts related to this question were the Rwandan genocide, the Burundian genocide, and the First and Second Congo Wars. Ugandan scholar Mahmoud Mamdani identifies at least four distinct foundations for studies that support the "distinct difference between Hutu and
Rwandan genocide or simply having a "Tutsi appearance". The RPF was making slow but steady gains in the north and east of the country, ending the killings in each area occupied. The genocide was effectively ended during April in areas of Ruhengeri, Byumba, Kibungo and Kigali provinces. The killings ceased during April in the "akazu" heartlands of western Ruhengeri and Gisenyi, as almost every Tutsi had been eliminated. Large numbers of Hutu in the RPF conquered areas fled, fearing retribution for the genocide; 500,000 Kibungo residents walked over the bridge at Rusumo Falls, into Tanzania, in a few days at the end