The operation helped turn the tide of war in Britain's favour
War veterans have taken part in a memorial parade in Falmouth to remember those troops that left the town 67 years ago on a World War II mission.
Operation Chariot, in 1942, took out vital German facilities in the French port of St Nazaire and played an important role in winning World War II.
The crew of HMS Cambeltown, filled with explosives, sailed from Falmouth and rammed the dry dock gates.
Five Victoria crosses were awarded for the attack.
The ramming, by HMS Campbeltown, an obsolete destroyer, ended use of the dock.
Only 27 of the commandos who landed on the docks and destroyed other dock structures avoiding capture or being killed.