Explanation

• The international land border between the United States and Canada is the longest in the world.
• It stretching nearly 8,900 kilometers.
• It established on September 3, 1783, at the end of the American War of Independence.
• It spans 8,891 km (5,525 mi) in total.
• The border has two sections: one between Canada and the contiguous United States to the south, and another with the U.S. state of Alaska to the west.