* The French Navy was defeated. This was a major victory for the British Navy, as it secured control of the seas around North America.
* The British Army was able to capture Yorktown. This was a major strategic victory, as it cut off the British army in the south from its supply lines.
* The surrender of Cornwallis' army. This was a major turning point in the war, as it convinced many people in Britain that the war was unwinnable.
Disadvantages of the Battle Yorktown
* The battle was very bloody. Thousands of people were killed or injured on both sides.
* The war was not over yet. The British still had control of New York City and other parts of North America.
* The peace negotiations were difficult. The British did not want to give up their colonies, and the Americans did not want to give up their independence.