HMS Vanguard and Le Triomphant submarine collision

The collision between HMS Vanguard and Le Triomphant refers to an incident that occurred in February 2009 involving two nuclear-powered submarines: the British HMS Vanguard and the French Le Triomphant. HMS Vanguard is a British Royal Navy submarine and one of the four submarines of the Vanguard class, which serves as the UK's nuclear deterrent. Le Triomphant, on the other hand, is a French Navy submarine of the Triomphant class, also designed for strategic deterrence.