Z12 Erich Giese
to part in one mining operation in British coastal waters on 07.12.1939 where it torpedoed the British destroyer Jersey
, damaging the ship heavily. During in Operation Weserübung the Z12 Erich Giese
was part of the Kriegsschiffgruppe 1 heading for Narvik, where it was sunk on 13.04.1940 after a battle with 6 British destroyers.