Which important reason for the american victory in the revolutionary war is missing from the chart

The important reason for the american victory in the revolutionary war that is missing is :  Aid from foreign nation
We won't be able to win the Revolution without the help of France's army

hope this helps

Contributing factors  leading  to the harlem renaissance were the great migration of african americans to northern cities, which concentratedambitious  people in places where they could encourage each  other, and the first world war, which had created new industrial work opportunities for tens of thousands of people.