Why were the Americans able to force the British to surrender at Yorktown?

The Americans were able to force the British to surrender at Yorktown due to a combination of strategic planning and effective collaboration with French forces. General George Washington's army, bolstered by French troops and naval support, successfully besieged British General Cornwallis's forces. The British were trapped on the peninsula with limited supplies and reinforcements, leading to their eventual surrender on October 19, 1781. This decisive victory marked a turning point in the American Revolutionary War, significantly weakening British resolve.