What countries does Canada border?

Canada, the second-largest country in the world by area, shares borders with just one country— the United States. The total length of Canada’s land border with the U.S. is approximately 8,891 kilometres, making it the longest undefended border in the world. This border stretches from the Atlantic Ocean in the east to the Pacific Ocean in the west, passing through various terrains including forests, plains, and mountains. Canada also shares maritime boundaries with French territories, like Saint Pierre and Miquelon, near Newfoundland. The border with the U.S. is vital for trade and cooperation, as the two countries have one of the world’s largest and most integrated economic relationships.