A Plan of Treaties, 18 June 1776

“Art. 8. In Case of any War between the most Christian King and the King of Great Britain, the most Christian King Shall never invade, nor attempt to invade, or get Possession, for himself of Labradore, New Britain, Nova Scotia, Accadia, Canada, Florida, nor any of the Countries, Cities, or Towns, on the Continent of North America, nor of the Islands of Newfoundland, Cape Breton, St. Johns, Anticoste, nor of any other Islands lying near to the Said Continent, in the Seas, or in any Gulph, Bay, or River, it being the true intent and meaning of this Treaty, that the Said united States Shall have the Sole, exclusive undivided and perpetual Possession of all the Countries, Cities, and Towns, on the Said Continent, and of all Islands near to it, which now are, or lately were under the Jurisdiction of or subject to the King or Crown of Great Britain, whenever the Same can be invaded, and conquered by the Said united States, or shall in any manner submit to or be confederated with them.

https://founders.archives.gov/documents/Adams/06-04-02-0116-0002