During World War II in September 1940, there was a British sortie codenamed Operation Lucid to send old oil tankers into French ports to destroy barges intended for the planned invasion of Britain; it was abandoned when both tankers broke down. Ships or boats packed with explosives could still be effective. Such a case was Operation Chariot of 1942, in which the old destroyer was packed with explosives and rammed into the dry dock at Saint-Nazaire, France, to deny its use to the battleship "Tirpitz", which could not drydock anywhere else on the French west coast. In the Mediterranean, the Italian Navy made good use of high-speed boats filled with explosives, mostly against moored targets. Each boat, called by the Italians MTM ("Motoscafo da Turismo Modificato"), carried of explosive charge inside its bow. Their best-known action was the 1941 assault on Souda Bay, which resulted in the destruction of cruiser and the Norwegian tanker "Pericles", of 8,300 tons.