the answer is Mexico
Texas borders just one country (besides the US), that's Mexico to the southwest.
Mexico.
Mexico
mexico
The southwest region of the United States borders Mexico.
No. There are international borders only in the north (Canada) and southwest (Mexico).
Mexico borders the US along much of the southwest.
Mexico is the only country that borders Texas.
Dony
New Mexico. Mexico is a country bordering the United States and New Mexico, a state in the the United States, has the same name. The only state in the US that has the name of a country that borders the US in it is New Mexico. The other country is Mexico.
Mexico borders the US to the south.