The Rush–Bagot Treaty or "Rush–Bagot Disarmament", was a treaty between the United States and Britain limiting naval armaments on the Great Lakes and Lake Champlain, following the War of 1812. It was ratified by the United States Senate on April 16, 1818., and was confirmed by Canada, following Confederation, in 1867. The treaty provided for a large demilitarization of lakes along the international boundary, where many British naval arrangements and forts remained. The treaty stipulated that the United States and British North America could each maintain one military vessel (no more than 100 tons burden) as well as one cannon (no more than eighteen pounds) on Lake Ontario and Lake Champlain. The remaining Great Lakes permitted the United States and British North America to keep two military vessels "of like burden" on the waters armed with "like force". The treaty, and the separate Treaty of 1818, laid the basis for a demilitarized boundary between the U.S.