They are "touching" each other. Mexico borders California, Arizona, New Mexico and Texas.
Both the US state and the country border each other.
The reason why they fought each other is because Texas wanted to be independent from Mexico, because most of the Texans were Americans that moved. They revolted because Mexico only allowed them to be Catholic, and most of the settlers were Protestant.
Against each other? Two of them. The first was the Texas Revolution (1835-1836) and the other was the Mexican-American War (1846-1848). [The government of the United States was not involved in the Texas War of Independence. That was a civil war internal to Mexico and its citizens.]
Texcoco is in central Mexico. The closest US state would be Texas, but both names don't have any relationship with each other.
Houston, Texas; Albuquerque, New Mexico; and Los Angeles, California are the largest cities in Texas, New Mexico and California based on population.
Both countries border each other, so technically, distance is zero.
Both Mexico's government and American settlers in Texas were at odds towards each other due to one simple law: whether or not to allow slavery in Texas. Ultimately, this led to the independence of Texas and the Mexican-American War of 1846-1848. Please see related questions for more information.
Apache are from New Mexico and Comanche are from north Texas. Both those places are right next to each other and are shrubby deserts.
They do not border each other, but Nebraska is north of Texas.
People here in Mexico we are really friendly with each other and nice.
Yes. Both the US state of New Mexico and the country of Mexico border each other.