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.
Both the US state and the country border each other.
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Kansas is the US state on the southern border of Nebraska. The capital city of Kansas is Topeka.
Georgia is the name of a country in Eastern Europe that shares its name with a southern US state.
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.
Mexico is the country on the southern border of the United States.