The United Nations Mission in Sierra Leone (UNAMSIL) was a United Nations peacekeeping operation in Sierra Leone from 1999 to 2006. It was created by the United Nations Security Council in October 1999 to help with the implementation of the Lomé Peace Accord, an agreement intended to end the Sierra Leonean civil war. UNAMSIL expanded in size several times in 2000 and 2001. It concluded its mandate at the end of 2005, the Security Council having declared that its mission was complete.
United Nations Security Council resolution 1162, adopted unanimously on 17 April 1998, after recalling resolutions 1132 (1997) and 1156 (1998) on the situation in Sierra Leone, the Council authorised the deployment of 10 United Nations military liaison and security advisory personnel to ascertain the situation in the country.
United Nations Security Council resolution 1231, adopted unanimously on 11 March 1999, after recalling resolutions 1181 (1998) and 1220 (1999) on the situation in Sierra Leone, the Council extended the mandate of the United Nations Observer Mission in Sierra Leone (UNOMSIL) until 13 June 1999.
United Nations Security Council resolution 1260 was adopted unanimously on 20 August 1999; after recalling resolutions 1171 (1998), 1181 (1998) and 1231 (1999) on the situation in Sierra Leone, the Council strengthened the United Nations Observer Mission in Sierra Leone (UNOMSIL) by up to 210 additional military observers.
United Nations Security Council resolution 1270, adopted unanimously on 22 October 1999, after recalling resolutions 1171 (1998), 1181 (1998), 1231 (1999) and 1260 (1999) on the situation in Sierra Leone and Resolution 1265 (1999) on the protection of civilians in armed conflict, established the United Nations Mission in Sierra Leone (UNAMSIL) to assist in the implementation of the Lomé Peace Accord.
United Nations Security Council resolution 1289, adopted unanimously on 7 February 2000, after recalling resolutions 1171 (1998), 1181 (1998), 1231 (1999), 1260 (1999), 1265 (1999) and 1270 (1999) on the situation in Sierra Leone, the Council extended the mandate of the United Nations Mission in Sierra Leone (UNAMSIL) for a period of six months and expanded its military component.
United Nations Security Council resolution 1313, adopted unanimously on 4 August 2000, after recalling all previous resolutions on the situation in Sierra Leone, the Council extended the mandate of the United Nations Mission in Sierra Leone (UNAMSIL) until 8 September 2000 and expressed its intention to review the mission's mandate based on recommendations.
United Nations Security Council resolution 1334, adopted unanimously on 22 December 2000, after recalling resolutions 1270 (1999), 1289 (1999), 1313 (2000), 1317 (2000) and 1321 (2000) on the situation in Sierra Leone, the Council extended the mandate of the United Nations Mission in Sierra Leone (UNAMSIL) until 31 March 2001. It was the final resolution adopted in 2000.
United Nations Security Council resolution 1346, adopted unanimously on 30 March 2001, after recalling previous resolutions on the situation in Sierra Leone, the Council extended the mandate of the United Nations Mission in Sierra Leone (UNAMSIL) for a further six months and increased the size of its military component.
United Nations Security Council resolution 1370, adopted unanimously on 18 September 2001, after recalling resolutions 1270 (1999), 1289 (2000), 1313 (2000), 1317 (2000), 1321 (2000) and 1346 (2001) on the situation in Sierra Leone, the Council extended the mandate of the United Nations Mission in Sierra Leone (UNAMSIL) for a period of six months until 31 March 2002, beginning from 30 September 2001.
United Nations Security Council resolution 1385, adopted unanimously on 19 December 2001, after recalling all resolutions on the situation in Sierra Leone, particularly resolutions 1132 (1997), 1171 (1998), 1299 (2000) and 1306 (2000), the Council extended sanctions against the import of rough diamonds except those controlled by the government from the country for a further 11 months, beginning on 5 January 2002.
United Nations Security Council resolution 1389, adopted unanimously on 16 January 2002, after recalling all previous resolutions on the situation in Sierra Leone, the Council expanded the mandate of the United Nations Mission in Sierra Leone (UNAMSIL) to include wide-ranging provisions for supporting the May 2002 general elections.
United Nations Security Council resolution 1400, adopted unanimously on 28 March 2002, after recalling all previous resolutions on the situation in Sierra Leone, the Council extended the mandate of the United Nations Mission in Sierra Leone (UNAMSIL) for a further six months until 30 September 2002 in the run up to the May 2002 general elections.
United Nations Security Council resolution 1470, adopted unanimously on 28 March 2003, after recalling all previous resolutions on the situation in Sierra Leone, the Council extended the mandate of the United Nations Mission in Sierra Leone (UNAMSIL) for six months until 30 September 2003.
United Nations Security Council resolution 1508, adopted unanimously on 19 September 2003, after recalling all previous resolutions on the situation in Sierra Leone, the Council extended the mandate of the United Nations Mission in Sierra Leone (UNAMSIL) for six months until 31 March 2004.
United Nations Security Council resolution 1537, adopted unanimously on 30 March 2004, after recalling all previous resolutions on the situation in Sierra Leone, the Council extended the mandate of the United Nations Mission in Sierra Leone (UNAMSIL) for six months until 30 September 2004 with a residual force remaining in the country until June 2005.
United Nations Security Council resolution 1562 was adopted unanimously on 17 September 2004. After recalling all previous resolutions on the situation in Sierra Leone, the Council extended the mandate of the United Nations Mission in Sierra Leone (UNAMSIL) residual presence for a period of nine months until 30 June 2005.
United Nations Security Council resolution 1620, adopted unanimously on 31 August 2005, after recalling all previous resolutions on the situation in Sierra Leone, the Council established the United Nations Integrated Office in Sierra Leone (UNIOSIL) for an initial period of twelve months beginning on 1 January 2006, to replace the United Nations Mission in Sierra Leone (UNAMSIL).
United Nations Security Council resolution 1626, adopted unanimously on 19 September 2005, after recalling all previous resolutions on the situations in Liberia and Sierra Leone, particularly resolutions 1509 (2003), 1610 (2005) and 1620 (2005), the Council extended the mandate of the United Nations Mission in Liberia (UNMIL) until 31 March 2006 and authorised the deployment of 250 troops to Sierra Leone to protect the Special Court.
The United Kingdom began a military intervention in Sierra Leone on 7 May 2000 under the codename Operation Palliser. Although small numbers of British personnel had been deployed previously, Palliser was the first large-scale intervention by British forces in the Sierra Leone Civil War. In early May 2000, the Revolutionary United Front (RUF)—one of the main parties to the civil war—advanced on the country's capital, Freetown, prompting the British government to dispatch an "operational reconnaissance and liaison team" (ORLT) to prepare to evacuate foreign citizens. On 6 May, the RUF blocked the road connecting Freetown to the country's main airport, Lungi. The next day, British soldiers began to secure the airport and other areas essential to an evacuation. The majority of those who wished to leave were evacuated within the first two days of the operation, but many chose to stay following the arrival of British forces.
