The Sierra Leonean Civil War (1991–2002) was a civil war in Sierra Leone that began on 23 March 1991 when the Revolutionary United Front (RUF), with support from the special forces of Liberian dictator Charles Taylor, the National Patriotic Front of Liberia (NPFL), intervened in Sierra Leone in an attempt to overthrow the Joseph Momoh government. The resulting civil war lasted almost 11 years, and had over 50,000, up to 70,000, casualties in total; an estimated 2.5 million people were displaced during the conflict, and widespread atrocities occurred.
During the first year of the war, the RUF took control of large swathes of territory in eastern and southern Sierra Leone, which were rich in alluvial diamonds. The government's ineffective response to the RUF and the disruption in government diamond production precipitated a military coup d'état in April 1992, organized by the National Provisional Ruling Council (NPRC). By the end of 1993, the Sierra Leone Army (SLA) had succeeded in pushing the RUF rebels back to the Liberian border, but the RUF recovered and fighting continued. In March 1995, Executive Outcomes (EO), a South Africa-based private military company, was hired to repel the RUF. Sierra Leone installed an elected civilian government in March 1996, and the retreating RUF signed the Abidjan Peace Accord. Under UN pressure, the government terminated its contract with EO before the accord could be implemented, and hostilities recommenced.