Canada: The United States' Northern Neighbor

Canada is the northern neighbor of the United States, sharing the world's longest international border—5,525 miles (8,891 km)—including the Alaska boundary.

The relationship is defined by deep economic integration (USMCA), defense cooperation (NORAD), cultural exchange, and aligned values. Over $2 billion in goods/services cross daily. Both nations are G7, NATO, and Five Eyes members.