My latest at RealClearHistory deals with Texas and its secession from Mexico. An excerpt:

There are other similarities, too, starting with the fact that Texas was not the only state in Mexico to try and secede from Mexico City. The self-declared republics of Rio Grande, Zacatecas, and Yucután also asserted their independence from Mexico, though Texas was the only state to actually succeed in its rebellion. Unlike the 13 North American states attempting to secede from the British Empire, the Mexican provinces did not band together to form a united front against a common enemy.

Texas itself was the northern part of a larger state called Coahuila y Tejas. When Mexico originally seceded from Spain, Coahuila y Tejas joined the new republic as its poorest, most sparsely populated member state. In addition to economic and demographic problems, Coahuila y Tejas shared a border with the Comanche and Apache Indians, who in the 1820s were still powerful players in regional geopolitics. Life in Coahuila y Tejas was nasty, brutal, and short.

Please, read the rest.