The Treaty of Fontainebleau gave Spain the Louisiana Territory in exchange for Florida (although credit is often given to the public Treaty of Paris), including present-day Arkansas. The Spanish show little interest in Arkansas Post except for the land grants meant to inspire settlement around the post which would later cause problems with land titles given by the American government. The post's position up the Arkansas River made it a hub for trappers to start their journeys, although it also served as a diplomatic center for relations between the Spanish and Qua-paw. Many that stopped at Arkansas Post were simply passing through on their way up or down river and needed supplies or rest. Inhabitants of the post included approximately 10 elite merchants, some domestic slaves, and the wives and children of trappers who were out in the wilderness. Only the elites actually lived inside the defensive walls of the post, with the remaining people surrounding the fortification. In April 1783, Arkansas saw its only battle of the American Revolutionary War, a brief raid of the post by British Captain James Colbert, with the assistance of Choctaw and Chickasaw Indians.