The Country that shares the southern Border with the US is Canada.
Two countries share a border with the United States. To the north, the US shares a border with Canada. To the south, the US shares a border with Mexico.
CanadaCanada shares the longest border with the US.
Canada does
The US
mexico and do
The only Latin American country that shares a border with the United States is Mexico.
Canada and Mexico
Both Canada and Mexico border the US.
Venezuala shares a border with Brazil.
Mexico
Country that shares myanmar's southern border?