The important issues was Democracy.
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.
Because it was To get more land to get more ressources that's why countries get involved in wars
Answer:
Southerners who believed in Manifest Destiny Southerners who wanted to add new slave states. Northerners who were members of the Whig Party
Explanation:
Southerners who believed in Manifest Destiny Southerners who wanted to add new slave states. Northerners who were members of the Whig Party