Answer:
1. First, American troops would drive Mexican forces out of the disputed border region in Texas and make the border secure.
Second, the United States would seize New Mexico and California.
Finally, American forces would take Mexico City, the capital of Mexico.
2. The battles of the Mexican–American War include all major engagements and most reported skirmishes, including Thornton's Defeat, the Battle of Palo Alto, and the Battle of Resaca de la Palma, which took place prior to the official start of hostilities.
Explanation: hope that makes sense and it helps you and if it doesnt my bad.