Texas was never a territory of the US, before it was a state Texas was a country called The Republic of Texas, it had its own army and navy as well as its own president.
Arizona, New Mexico and Indian Territory
The Texas territory
The United States annexed Texas.
The Northwest territory, the Louisiana territory, the Texas territory, the New Mexico, California, and Oregon territories, and the Florida territory.
The whole territory of Texas.
Texas
Texas Territory
It was a Mexican territory until the Texas Revolution (1835-1836)
mexicans
The territory of Texas.
Texas Territory