The treaty provided for a large demilitarization of lakes along the international boundary, where many British naval arrangements and forts remained.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 United States and Canada agreed in 1946, through an exchange of diplomatic notes, that the stationing of naval vessels for training purposes was permissible provided each government was fully notified in advance.Similar problems occurred before World War II, but Secretary of State Cordell Hull wanted to preserve the agreement because of its historical importance.After discussions in the Permanent Joint Board on Defense, in 1946, Canada similarly proposed to interpret the agreement as permitting using ships for training purposes if each country notified the other.
Plaque to Charles Bagot, British diplomat, at Old Fort Niagara