OSM Afghanistan Op Herrick Medal with Afghanistan Bar World War 2 The General Service Medal 1962 The General Service Medal 1962 2007 is commonly known as the Campaign Service Medal 1962 as was awarded with a minimum of one campaign clasp (in the instance 'Lebanon') and it is believed that a maximum of six clasp have been awarded on one medal also referred to as The Campaign Service Medal replaced the GSM (Army & RAF) and the Navy GSM in 1964 and was backdated to December 1962 to cover the Borneo campaign Awarded for service from 1st March 2002 in the Afghanistan theatre of operations Operational Service Medal Afghanistan the Op Herrick Medal