Final answer:
The British were defeated at Yorktown through a combination of military tactics, strategic alliances, and logistical challenges.
Step-by-step explanation:
The British were defeated at Yorktown to end the Revolutionary War due to a combination of military tactics, strategic alliances, and logistical challenges. One key factor was the French naval support that prevented the British from receiving supplies or reinforcements. Another important aspect was the coordination between American and French forces, led by General George Washington and the Marquis de Lafayette respectively, which resulted in a successful siege on the British army. The terrain and location of Yorktown also played a role, as it allowed the American and French forces to trap the British and prevent their escape.
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