sentences:  Operational Service Medal for Sierra Leone
  
  The Operational Service Medal for Sierra Leone is a campaign medal established in 2000 by the Ministry of Defence of the United Kingdom for participation in the British military intervention during and after the Sierra Leone Civil War, from May 2000 to July 2002.The Operational Service Medal (OSM) was established in 1999 to replace the General Service Medal (1962) for all new operations.