To defend you God-given right to own slaves.
Not really, but that was the main reason of the Mexican-American War; and unless you had your share of lands in California or Texas, you were basically supporting a war for rich slave owners.
See related questions.
shush be quiet you should go on youtube.com
yes they did go to war
1845 was the Mexican-American War.
Abraham Lincoln.
It began in Texas.
Yes.
Green-go!
Mexican War
The Mexican-American War was not unnecessary.
The Mexican cession was the outcome of the Mexican American war.
The Mexican War resulted in the Mexican Cession and the Treaty of Guadalupe Hidalgo ended the Mexican War.
No. Lincoln did not fight in the Mexican War.