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introduction to the War of 1812-1814<br> Monuments & Memorials in Ottawa picture - This war, which lasted for two years, marked the last time American troops invaded Canada. Ever since, the two countries have shared the world's longest undefended border.
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This war, which lasted for two years, marked the last time American troops invaded Canada. Ever since, the two countries have shared the world's longest undefended border.
North America
