The Sierra Leone Civil War began with the invasion of the Revolutionary United Front, with support from the special forces of Charles Taylor's National Patriotic Front of Liberia, in an attempt to overthrow President Joseph Saidu Momoh.

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.

The Revolutionary United Front (RUF) was a rebel group that fought a failed eleven-year war in Sierra Leone, beginning in 1991 and ending in 2002. It later transformed into a political party, which still exists today. The three most senior surviving leaders, Issa Sesay, Morris Kallon, and Augustine Gbao, were convicted in February 2009 of war crimes and crimes against humanity.

Charles McArthur Ghankay Taylor is a Liberian former politician and convicted war criminal who served as the 22nd president of Liberia from 2 August 1997 until his resignation on 11 August 2003 as a result of the Second Liberian Civil War and growing international pressure.

The National Patriotic Front of Liberia (NPFL) was a Liberian rebel group that initiated and participated in the First Liberian Civil War from 24 December 1989 – 2 August 1997. The NPFL emerged out of rising ethnic tensions and civil unrest due to the Liberian government that was characterized by totalitarianism, corruption, and favoritism towards ethnic Krahns. The NPFL invaded Liberia through Ivory Coast’s border with Nimba County in Liberia under the direction of Charles Taylor, a former Liberian politician and guerrilla leader who served as the 22nd president of Liberia from 2 August 1997 until his resignation on 11 August 2003.