The correct answer is option 1, the Battle of Trafalgar. The Battle of Trafalgar took place in 1805 and was a naval battle between the British Royal Navy and the combined fleets of France and Spain. It marked a significant defeat for Napoleon Bonaparte`s navy and effectively put an end to his plans of invading Britain. The British navy, under the command of Admiral Horatio Nelson, utilized innovative tactics and superior naval strategies to defeat the larger enemy fleet. The battle resulted in the destruction of many French and Spanish ships and the death of Admiral Nelson. This defeat at Trafalgar prevented Napoleon from establishing naval supremacy, limiting his ability to expand his empire and ultimately leading to his downfall.