Union spent much of her short career operating in the
Mediterranean, where she sank the Italian merchant Pietro Querini. Her success was short-lived however. Union sailed from
Malta at 1 o’clock on the morning of 14 July 1941 with orders to intercept a convoy north of
Tripoli the following day. On 20 July 1941 she was depth charged and sunk with all hands during an attack on the convoy by the
Italian torpedo boat Circe south of
Pantelleria. When Union failed to return to Malta she was reported overdue on 22 July 1941.[1][2]
^"HMS Union". rnsubs.co.uk. Retrieved 27 September 2022.
References
Akermann, Paul (2002). Encyclopaedia of British Submarines 1901–1955 (reprint of the 1989 ed.). Penzance, Cornwall: Periscope Publishing.
ISBN1-904381-05-7.
Bagnasco, Erminio (1977). Submarines of World War Two. Annapolis, Maryland: Naval Institute Press.
ISBN0-87021-962-6.