As part of New France, Mississippi was also ruled by the Spanish after France's defeat in the Seven Years' War (1756–63). Later it was briefly part of West Florida under the British. In 1783 the Mississippi area was deeded by Great Britain to the United States after the latter won its independence in the American Revolution, under the terms of the Treaty of Paris. Following the Peace of Paris (1783) the southern third of Mississippi came under Spanish rule as part of West Florida.