The Operational Service Medal ( OSM ) was established in 1999 to replace the General Service Medal ( 1962 ) for all new operations . A separate medal of the same design is awarded for each campaign , differentiated by a distinct ribbon . It has been awarded for four separate campaigns : From 2008 , British service personnel could receive the General Service Medal ( 2008 ) for participation in smaller operations that do not justify the award of the Operational Service Medal
General Service Medal ( 2008 )
General Service Medal (2008)
Operational Service Medal for the Democratic Republic of Congo