especially between the agrarian tribes of Congo and the Banyarwanda in the Eastern region of Congo of Kivu. When colonial boundaries were drawn in the late nineteenth century many Banyarwanda found themselves on the Congolese side of the Rwandan border, in Kivu province. The earliest of these migrants arrived before colonisation in the 1880s, followed by emigrants whom the Belgian colonizers forcibly relocated to Congo to perform manual labour (after 1908), and by another significant wave of emigrants fleeing the social revolution of 1959 that brought the Hutu to power in Kigali. Tutsi who emigrated to Zaire before Congolese independence in 1960 are known as Banyamulenge, meaning "from Mulenge", and had the right to citizenship under Zairian law. Tutsi who emigrated to Zaire following independence are known as Banyarwanda, although the native locals often do not distinguish between the two, call them both Banyamulenge and consider them foreigners. After coming to power in 1965, Mobutu gave the Banyamulenge political power in the east in hopes that they, as a minority, would keep a tight grip on power and prevent more populous ethnicities from forming an opposition. This move aggravated the existing ethnic tensions by strengthening the Banyamulenge's hold over important stretches of land in North Kivu that indigenous people claimed as their own. From 1963 to 1966 the Hunde and Nande ethnic groups of North Kivu fought against Rwandan emigrants — both Tutsi and Hutu – in the Kanyarwandan War, which involved several massacres. Despite a strong Rwandan presence in Mobutu's government, in 1981, Zaire adopted a restrictive citizenship law which denied the Banyamulenge and Banyarwanda citizenship and therewith all political rights. Though never enforced, the law greatly angered individuals of Rwandan descent and contributed to a rising sense of ethnic hatred. From 1993 to 1996 Hunde, Nande, and Nyanga youth regularly attacked the Banyamulenge, leading to a total of 14,000 deaths. In 1995 the Zairian Parliament ordered all peoples of Rwandan or Burundian descent repatriated to their countries of origin, including the Banyamulenge. Due to political exclusion and ethnic violence, as early as 1991 the Banyamulenge developed ties to the Rwandan Patriotic Front (RPF), a mainly Tutsi rebel movement based in Uganda but with aspirations to power in Rwanda. Rwandan genocide The most deciding event in precipitating the war was the genocide in neighbouring Rwanda in 1994, which sparked a mass exodus of refugees known as the Great Lakes