The historical outcome
Cornwallis’s forces surrendered at Yorktown on 19 October 1781. American and French cooperation on land and French naval power were central to the siege. The National Park Service account and its Battle of the Capes explanation describe the campaign.
Define the alternative
Escaping encirclement, receiving relief and defeating the besiegers are different outcomes. Choose one rather than treating “British victory” as a self-explanatory event.
What changes at sea or on land to make it possible? Identify the timing, communications and resources required. Do not merely announce that reinforcements arrive without explaining how.
Follow the limited result
An army remaining available could change subsequent choices. It would not automatically restore British authority throughout the colonies or determine a peace treaty. Political willingness to continue the war would still matter.
Write a fictional dispatch describing the immediate position and the next difficulty. Then set out two possible responses from opponents.
Distinguish scales of argument
A claim about one campaign can be tested against operational evidence. A claim about the absence of the modern United States depends on a much longer chain of speculation.
Keep your conclusion proportionate: explain what your change plausibly makes possible and what it leaves unresolved. Label all invented documents and dialogue.
Editorial review
Reviewed on 26 September 2026. Removed the unsupported minor-skirmish claim and separated a battlefield outcome from guaranteed British victory in the war.