It's one of the most famous battles in the Royal Navy's history - and today a special service will be held to remember the British victory at the Battle of Trafalgar in 1805. A ceremony will be held onboard HMS Victory - which was Lord Nelson's flagship during the battle.
She is - to this day - the oldest commissioned warship in the world.
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The group arrived at the harbour early on Tuesday morning on what is thought to be a fishing trawler stolen from France.
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