The Rwandan Civil War was a large-scale civil war in Rwanda which was fought between the Rwandan Armed Forces, representing the country's government, and the rebel Rwandan Patriotic Front (RPF) from 1 October 1990 to 18 July 1994. The war arose from the long-running dispute between the Hutu and Tutsi groups within the Rwandan population. A 1959–1962 revolution had replaced the Tutsi monarchy with a Hutu-led republic, forcing more than 336,000 Tutsi to seek refuge in neighbouring countries. A group of these refugees in Uganda founded the RPF which, under the leadership of Fred Rwigyema and Paul Kagame, became a battle-ready army by the late 1980s.