A vast, 325 foot behemoth of black steel, the Suffren was launched at a dry-dock ceremony in the northern port of Cherbourg.
President Emmanuel Macron on Friday launched the first of a new fleet of nuclear-powered attack submarines that aims to ensure French naval superiority in the coming decades.
Built by French shipbuilder Naval Group for the French navy, the Suffren is a Barracuda-class nuclear attack submarine designed to replace the Rubis-class submarines which have been in service since the 1980s.
French Defence Minister Florence Parly was there alongside Australian counterpart Linda Reynolds. Australia inked a deal in February to buy 12 conventionally-powered attack-class submarines from Naval Group.