Texas Transportation Code - TRANSP § 521.028. Effect of Military Service on License Requirement

(a) Unless the license is suspended, canceled, or revoked as provided by law, a driver's license issued by this state that is held by a person who is on active duty in the armed forces of the United States and is absent from this state, notwithstanding the expiration date of the license, remains valid while the person is absent from this state. If the person is honorably discharged from active duty, the license remains valid until the earlier of:

(b) A person on active duty in the armed forces of the United States who has in the person's possession a license issued in a foreign country by the armed forces of the United States may operate a motor vehicle in this state for a period of not more than 90 days after the date on which the person returns to the United States.