The Distinguished Service Medal (DSM) (Irish: An Bonn Seirbhíse Dearscna) is a military decoration issued by the Irish Government. After the Military Medal for Gallantry (An Bonn Míleata Calmachta), it is the next highest award of the Military awards and decorations of Ireland.It is issued in three grades: File:IRE Distinguished Service Medal with Honour ribbon bar.png Distinguished Service Medal 1st Class or The Distinguished Service Medal with Honour, in silver.