The Treaty of Paris in 1783 ended the American Revolutionary War and recognized the sovereignty of the United States. A major result was that Britain formally acknowledged American independence, granting the new nation control over territory that extended to the Mississippi River. This treaty laid the foundation for the United States' westward expansion and set the stage for future diplomatic relations between the U.S. and Britain, as well as other nations. The agreement also had implications for the Native American populations, as their lands became increasingly contested as settlers moved westward.