The Mexican-American War was in the period 1846-1848. The main causes of the Mexican-American War were mainfest destiny (Americans believed that thye have the right to expand westward and conquer territory despite the rights of the indigenous people already living on that land), westward expansion, economics, and slavery
If I am not mistaken D is your answer.
Answer:
the first one
Explanation:
to ensure individual rights
No. They fought alongside each other.
