Once The Republic of Texas won their independence from Mexico, the new country favored joining the union. Unfortunately for Texas, the annexation raised many issues with the United States causing it to be a prolonged event. Although it was widely opposed in the beginning, there were some who supported the annexation and eventually convinced the nation to go through with it, but not without consequences.
The United States wanted to avoid war with Mexico, who had not recognized the independence of Texas. Mexico would recognize the United States annexing Texas as an act of war. This is an example of the military controversy caused by the annexation of Texas. As Henry Clay stated, “Annexation and war with Mexico are identical.” Economically