By Cara Giaimo, Atlas Obscura: The Man Who Went to War With Canada For centuries, the United States and Canada’s only remaining land border dispute has been kept alive by a single family.
The border between Canada and the United States is the longest in the world. It spans 5,525 miles, separating the Yukon from Alaska, Saskatchewan from Montana, Ontario from New York. It hosts its share of difficulties: smuggling, undocumented crossings, the militarized edge that has come to characterize such spaces. But in terms of actual land disputes, things are calm the whole way through—almost.