Wasn't Texas a Mexican province settled by colonizing Americans under concessions granted by the Mexican government? It was after the Mexican Congress in 1830 passed a law prohibiting slavery and the further settlement by American citzens that the American colonists denied the authority of the Mexican government and decided to secede and establish this 'independent republic'. Texas may not have been initially annexed by the American government, but it most cetainly was, at the point of a gun, by Americans

Best, Greg