On September 3, 1783, the British signed the Treaty of Paris in which they acknowledged the independence and sovereignty of the thirteen colonies, and led to the formation of the United States, which took possession of nearly all the territory east of the Mississippi River and south of the Great Lakes, including southern Canada, while the British retained control of northern Canada, and French ally Spain took back Florida.

The American Revolutionary War ended with the signing of the 1783 Treaty of Paris. The treaty granted the United States independence, as well as control of a vast region south of the Great Lakes and extending from the Appalachian Mountains west to the Mississippi River.

In April 1782, the North ministry was replaced by a new British government, which accepted American independence and began negotiating the Treaty of Paris, ratified on September 3, 1783, and Britain acknowledged the sovereignty and independence of the United States of America, bringing the American Revolutionary War to an end.