The end result of the treaty was the demilitarization of the Canadian U.S. border. A plaque from the Ontario Heritage Trust in Kingston, Ontario, recognizes the Rush Bagot Agreement (44°13′48″N 76°27′59″W / 44.229894°N 76.466292°W / 44.229894; -76.466292). A commemorative plaque is also on the former site of the British Embassy in Washington, D.C (38°54′13.7″N 77°3′8.4″W / 38.903806°N 77.052333°W / 38.903806; -77.052333) where the agreement was negotiated. On the site of Old Fort Niagara (43°15′48″N 79°03′49″W / 43.263347°N 79.063719°W / 43.263347; -79.063719) is a monument with reliefs of Rush and Bagot as well as the words of the treaty.  The British Minister for the United States, Charles Bagot, approves the terms of the Rush Bagot Agreement. After the negotiations, the incumbent foreign secretary, Richard Rush, sent the document to Britain in August 1816. This is the final version of a contract that Monroe, while he was Foreign Secretary in Madison, had negotiated with British Foreign Secretary Robert Stewart Castlereagh. The agreement limits naval capacity to the Great Lakes; It thus eased possible tensions between the two nations after the War of 1812. Each country is held on one vessel on Lakes Champlain and Ontario and two vessels on all other lakes. Sailing days and armament are also limited. Although the treaty caused difficulties during the First World War, its terms were not changed. Similar problems arose before the Second World War, but Foreign Minister Cordell Hull wanted to preserve the agreement because of its historical importance.
In 1939 and 1940, Canada and the United States agreed to interpret the treaty so that weapons would be installed in the Great Lakes, but would no longer be operational until ships left the lakes. In 1942, the United States, now at war and allied with Canada, successfully proposed that weapons be fully installed and tested in the lakes by the end of the war. Following discussions in the Permanent Joint Board on Defense in 1946, Canada similarly proposed to interpret the agreement to allow the use of ships for training purposes when each country informs the other.  Although the agreements did not fully cover border disputes and trade agreements, the Rush Bagot Agreement and the 1818 Convention marked an important turning point in Anglo-American and American-Canadian relations. The Rush Bagot Pact was an agreement between the United States and Britain to eliminate their fleets from the Great Lakes, with the exception of small patrol ships. The Convention of 1818 established the boundary between the Territory of Missouri in the United States and British North America (later Canada) at forty-ninth latitude. . .