There are no countries in the US.
Canada is bordered by the US only.
The US is bordered to the south by Mexico.
Canada
Denmark
The US is bordered to the south by Mexico.
No US states have a border with Alaska. It is bordered only by Canada (which IS a different country )
Portugal.
chile
Mexico is the only country that borders Texas.
It is bordered by Canada to the North & the US to the South.
Mexico did.