Canada!
Canada borders the north of the US.
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.
Mexico
There are no countries that border the US on the east. The eastern US is bordered by the Atlantic Ocean. and their northern Border has Canada all the way to the Canadian north pole.
The country of Mexico is north of Guatemala.
Mexico shares its northern border with the USA.
The country of Mexico is north of Guatemala.
The country of Mexico is north of Guatemala.
The country of Mexico is north of Guatemala.
The country of Mexico is north of Guatemala.