There are calls for a fresh investigation into a bombing that killed eleven people at the Royal Marines School of Music in Deal.
The bomb destroyed a building in the barracks in September 1989.
A ceremony will be held this Sunday to remember the victims.
The blast flattened the 'Coffee Boat' rest area and destroyed a neighbouring accommodation block.
The then Commandant General of the Royal Marines Lieutenant General Sir Martin Garrod branded the bombers "the scum of the earth".
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Local MP Charlie Elphicke has called on the Northern Ireland Secretary to launch a full inquiry.
The Secretary of State, Julian Smith, is currently setting up a Historical Investigations Unit to consider past crimes from 'The Troubles'.
The Provisional IRA claimed responsibility for the Deal bombing but no one has ever been convicted for their involvement.