49th Parallel: The Years of War and Political Haggling It Took to Define the Canada-US Border

This treaty helped to soothe tensions between Britain and the U.S., but it would be many years before America ceased to look northward and westward for land that belonged to someone else. Still to be determined was the control of the vast territories where migration from the United States brought would-be settlers and traders into conflict with the native tribes, the Spanish and Mexican governments, and the Hudson’s Bay Company.