 After a 26-year stay, during which the French used this and other holdings to check "westward expansion by the British into the French colony of Louisiana," and to serve "as a trading post, solidifying France's relations with the Choctaws... the most powerful French ally in the area," the French ceded the fort, with most of its North American territory, to Great Britain under the Treaty of Paris, surrendering Tombecbé in November 1763; the British inspected and renamed it Fort York, although its actual inhabitation would await a recurrence of hostilities between the Choctaw and Creek Indians in 1766.Records of those overseeing the fort in this period document the challenge of supplying such a remote location, and after a 1768 truce ended the hostilities between the Choctaw and Creeks, the British abandoned Fort York, with Choctaws being the remaining inhabitants of the area until this tribe ceded a small parcel of land that included the fort to the Spanish in 1792/1793, under the Treaty of Boucfouca.As little of the original fortification structures remained when Spain arrived to take control in 1794, the Spanish chose to construct "a smaller but more substantial earthen structure" (rather building further wooden fortifications); they renamed the site and their resulting structure Fort Confederacion, in recognition of the alliance the Spanish had struck with Native American groups to assist them in resisting encroachment by commerce and settlements from the United States.