The correct answer to this open question is the following.
As news traveled to Europe, other countries, many of whom were not on friendly terms with England, were shocked at the American victory at Saratoga. What some of these countries decide to do was to support the Continental Army and the 13 colonies. The Americans hoped other countries will help the Continental Army as a result of this major victory.
And indeed that was what happened. The French decided to ally with the American colonies and they sent weapons and supplies to the American colonies in order to help the Continental Army to defeat the British troops.
At that time, Great Britain had many enemies, the French being one of them.
After the Continental Army victory in the Battle of Saratoga, the help received from France was vital to win the Revolutionary War and finally getting independence from the English crown.