 The Second Ostend Raid operation (of which "Sappho" was a part) was intended to block the harbour mouth and prevent the transit of German U-boats and other raiding craft from Bruges to the North Sea.Whilst travelling from Dunkirk to Ostend on the day of the attack however, "Sappho" suffered severe engine damage in a minor boiler explosion and was forced to retire, taking no part in the partial success of the raid.She was not used again during the war, and was scrapped in 1921.