Tutsi (largest) and the Twa (smallest). Small numbers of Hema, Kiga and Furiiru people also live near the Tutsi in Rwanda. The Northern Tutsi who reside in Rwanda are called Ruguru (Banyaruguru), while southern Tutsi that live in Burundi are known as Hima, the Tutsis who resides in Masisi which is in Kivu and they are known as Banyamasisi and the Tutsi that inhabit the Kivu plateau in the Congo go by Banyamulenge. The definitions of "Hutu" and "Tutsi" people may have changed through time and location. Social structures were not stable throughout Rwanda, even during colonial times under the Belgian
Rwandan genocide the capital and the country. An estimated 2,000,000 Rwandans, mostly Hutu, were displaced and became refugees. The genocide was planned by members of the core Hutu political elite, many of whom occupied positions at top levels of the national government. Perpetrators came from the Rwandan army, the Gendarmerie, and government-backed militias including the "Interahamwe" and "Impuzamugambi". The genocide took place in the context of the Rwandan Civil War, a conflict beginning in 1990 between the Hutu-led government and the Rwandan Patriotic Front (RPF). The latter was made up largely of Tutsi refugees whose families had fled to Uganda after the