Explanation:
The main reason for this was slavery. The US did not want to annex Texas because doing so would have upset the balance between slave states and free states that had been accomplished with the Missouri Compromise of 1820. When Texas became independent, it wanted to join up with the United States.
So that you know what your essay is about you need evidence to build you argument on
Settlers were not to go west of the Appalachian mountains. Further purchases from Indians of land to the east of that line were prohibited. The Indian territories west of the proclamation line would be under the authority of the military.
