What was one factor that caused the british to surrender at yorktown? british soldiers were suffering from disease and refused to fight. george washington's soldiers outnumbered the british soldiers two to one. british troops received a false message from the king that the war was over. french and american forces joined together to block the british from getting supplies

A factor that caused the British to surrender at Yorktown was that French and American forces joined together to block the British from getting supplies.

Explanation:

The Siege of Yorktown in 1781 was one of the decisive battles of the American War of Independence. In it, American forces were joined by French land and sea reinforcements that arrived to help the Americans against the English, tightening the blockade, forcing Cornwallis to surrender, as British troops were facing the blockade with no supplies, thus getting into a shortage that would eventually cause their defeat. As a result of this battle, the British government was forced to accept and recognize the negotiations with America.

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