Complex sentence: A British fleet led by Vice Admiral Lord Nelson defeats a combined French and Spanish fleet off the coast of Spain under Admiral Villeneuve, signaling almost the end of French maritime power and leaves Britain's navy unchallenged until the 20th century.
Split into simpler sentences: A British fleet led by Vice Admiral Lord Nelson defeats a combined French and Spanish fleet off the coast of Spain under Admiral Villeneuve. It signals almost the end of French maritime power and leaves Britain's navy unchallenged until the 20th century.