The primary effect of the Treaty of Paris in 1783 was the formal recognition of American independence from Britain. This treaty ended the American Revolutionary War and established boundaries for the newly formed United States, granting significant territory westward. The British recognized U.S. sovereignty and agreed to withdraw troops from American land. The treaty's implications were profound, as it set the stage for the evolution of the U.S. as an independent nation and shaped future international relations, influencing the trajectory of both the Americas and European politics.