Because the enemies ate pie.
The Battle of Trafalgar was fought to stop the French and Spanish fleet from joining with the French army in northern France and prevent a possible invasion of Britain.
Did france loose the Vietnam war?
Trafalgar
He was not personally at Trafalgar; but his navy lost the engagement on 21 October 1805.
Won
To honor those that died in the Battle of Trafalgar in 1805 when Britain's navy defeated Napoleon I of France.
Neither lose nor gain.
In 1802-1805
Lost, Big Time.
seven years' war
25 June 1940
None, but they did lose their commander Horatio Nelson.