Mackenzie, Duncombe, John Rolph and 200 supporters fled to Navy Island in the Niagara River, where they declared themselves the Republic of Canada on December 13.
The extended series of incidents comprising the Patriot War were finally settled by U.S. Secretary of State Daniel Webster and Alexander Baring, 1st Baron Ashburton, in the course of their negotiations leading to the Webster-Ashburton Treaty of 1842.