This is because he was trying to conquer Europe over all, so he could make the "perfect" country, and have everything the way he wanted it, and in complete control over the entire situation.
Crop rotation is wht they will use
John Adams was an ambassador to France during the American Revolution. Also served in Amsterdam securing a large loan that helped finance the war. He was also the first VP under George Washington, though Washington pretty much shut him out.
The Iroquois had past ties to both the English and the French, and the French had agreed to act as the authority between signatory tribes.