British won the final victory in the French and Indian Wars which started in 1689. This war, known in Europe as the Seven Year's War, ends with the Treaty of Paris. Under the treaty, France gives England all French territory east of the Mississippi River, except New Orleans. The Spanish give up east and west Florida to the English in return for Cuba. The Proclamation of 1763, signed by King George III of England, prohibits any English settlement west of the Appalachian mountains and requires those already settled in those regions to return east in an attempt to ease tensions with Native Americans.