http://www.historiclakes.org/Plattsburg/Plattsburg.html
The Battle of Plattsburgh, AKA Battle of Lake Champlain, marked the defeat of one of three prongs of a British invasion of the USA (a second British force in Maryland would be stopped at Baltimore a few days later; and the British invasion of the Mouth of the Mississippi would be defeated at New Orleans after the official end of the war). The defeat forced Britain to accept peace on the basis of "status quo ante bellum", with no territorial swaps or new restrictions on who could travel where. Coupled with the 1813 death of Tecumseh, and the collapse of the Indian alliance along the shores of the Great Lakes, Britain's plans to close the US out of the Great Lakes altogether, and to limit further westward US expansion, by forming a native "buffer state" came to nothing.