World’s Longest Undefended Border


Description of the border between Canada and the United States meant to symbolize the harmony and mutual cooperation of the Canada-US relationship.

Whether the description remains accurate, in a post-9/11 era of fortified border crossings is debatable.

Nonetheless, the phrase is a reliable, if hackneyed, standby whenever: an American politician addresses a Canadian audience; or the Canadian government wants fair treatment on a contentious trade issue, such as Soft Wood Lumber or the Keystone Pipeline.

Like most expressions of Canada/US relations, it has zero political currency in the US itself.

Image Source: Wikimedia Commons


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