The major outcome of the Treaty of Paris in 1763 was the conclusion of the French and Indian War, leading to significant territorial changes in North America. France ceded Canada and all its territories east of the Mississippi River to Britain, while Spain, a French ally, ceded Florida to Britain in exchange for the return of Havana, Cuba. This treaty marked the end of French colonial influence in mainland North America and gave Britain control over vast territories. The treaty also left deep resentment among the American colonists, as it limited their westward expansion and laid the groundwork for future conflicts with Britain.