By the close of 1779, what was the result of the combined efforts of the French, Spanish, and patriot forces led by George Rogers Clark and John Sullivan?

Respuesta :

Answer:

War

Explanation:

On this day in 1779, Spain declares war on Great Britain, creating a de facto alliance with the Americans. ... However, French Foreign Minister Charles Gravier, comte de Vergennes, managed to negotiate a treaty with Spain to join their war against the British.