Basic Details Surname Armstrong Forenames Derek Gender Male Information stated on memorial War Falklands Conflict (1982) Served or died Died Primary Service As stated on memorial Sub-unit (Primary - Stated) HMS Ardent Rank / Title (Primary - Stated) AB (S) Our References Service (Primary - Our reference) Royal Navy Unit (Primary - Our reference) HMS Ardent Rank / Title (Primary - Our reference) Able Seaman Death and Burial details Country of death Falklands Year of death 1982 Month of death May Day of death 21 Age at death 22 Manner of death reference Killed in Action