Texas does not share a border with Mexico.
The Border War , or the Border Campaign , refers to the military engagements which took place in the Mexico-United States border region of North America during the Mexican Revolution . Texas . Geographically located in the South Central region of the country , Texas shares borders with the U.S. states of Louisiana to the east , Arkansas to the northeast , Oklahoma to the north , New Mexico to the west , and the Mexican states of Chihuahua , Coahuila , Nuevo León , and Tamaulipas to the southwest , while the Gulf of Mexico is to the southeast . The Texas Panhandle is a region of the U.S. state of Texas consisting of the northernmost twenty-six counties in the state .