Claim: The Webster–Ashburton Treaty marked the end of the Aroostok War, a military and civilian confrontation between the U.S. and U.K. over the boundary between New Brunswick and Maine.
Evidence: Signed under John Tyler's presidency, it resolved the Aroostook War, a nonviolent dispute over the location of the Maine–New Brunswick border. The Aroostook War (sometimes called the Pork and Beans War) was a military and civilian-involved confrontation in 1838–1839 between the United States and the United Kingdom over the international boundary between the British colony of New Brunswick and the U.S. state of Maine.