The Battle of Trafalgar

The Battle of Trafalgar was a naval battle between the British fleet and the combined fleets of France and Spain on October 21, 1805,near Cape Trafalgar on the Atlantic coast of Spain.
Early during the 19th century, Napoleon Bonaparte aimed to establish dominance over Europe. His plans included an invasion of Great Britain, but to achieve this, he needed to defeat the Royal Navy. France joined forces with Spain and assembled a powerful fleet under Admiral Pierre-Charles Villeneuve.
Admiral Horatio Nelson's British fleet consisted of 27 ships, while the Franco-Spanish fleet consisted of 33. During the battle, Nelson employed a bold new strategy - he engaged the enemy in two columns and cut through the enemy line. TThis maneuver allowed the British to divide the enemy fleet apart and destroyed them.
During the battle, Admiral Nelson was mortally wounded, but the British secured a complete victory, destroying or capturing 22 of the enemy vessels without losing a single one of their own.
After the Battle of Trafalgar, Napoleon finally abandoned his plans to invade Great Britain for good. The British Royal Navy continued to be superior for decades to follow, and the United Kingdom continued to be the world's naval power.
The Trafalgar battle not only saved Britain from invasion but also paved the way to its supremacy of the world seas during the 19th century. It ranks as one of the greatest achievements in military history, settling the destiny of Europe.
P.S. Learn more about the battle at the link - "Battle of Trafalgar."