Centralist Republic of Mexico
The Texas Army, officially the Army of the Republic of Texas, was the land warfare branch of the Texas Military Forces during the Republic of Texas. It descended from the Texian Army, which was established in October 1835 to fight for independence from Centralist Republic of Mexico in the Texas Revolution. The Texas Army was provisionally formed by the Consultation in November 1835, however it did not replace the Texian Army until after the Battle of San Jacinto. The Texas Army, Texas Navy, and Texas Militia were officially established on September 5, 1836 in Article II of the Constitution of the Republic of Texas. The Texas Army and Texas Navy were merged with the United States Armed Forces on February 19, 1846 after the Republic of Texas became the 28th state of America.