When was the Mexican - American War?
Correct answer: April 25, 1846 – February 3, 1848

G E M M A
I had a student once who had a great grandfather who fought in the Mexican army under Santa Ana and a great grandfather who was inside the Alamo fighting with the Americans.

Timoteo
The US repeatedly offered to buy the territory from Mexico but Mexico was not interested in selling. So Polk pushed the US to declare war and the US stole the territory from Mexico. Mexico lost half of its territory in this shameful event.