Toulon is where Napoleon first made his name. In 1793, the city had been handed to the British and Spanish by local royalists — a humiliation for the Revolutionary government. A young Corsican artillery officer named Napoleon Bonaparte was sent to help retake it. His tactical insight — positioning guns to threaten the harbour directly — was decisive. The British fleet withdrew in December 1793, the city was retaken, and Napoleon was promoted to general on the spot.
A plaque near the old port marks the general area of the key battery position. More useful for context is the Musée National de la Marine, which covers this episode among others. The geography of the harbour — the narrow entrance, the commanding heights above — makes the strategy immediately legible when you are standing at the quayside.