President Polk.
No, the Mexican American War began in 1846.
No, in 1846.
Yes.
Right. It was 'borrowed' by Americans after the Mexican-American War.
In the contested Neuces Strip.
This war started in 1846.
Zachary Taylor
By having Mexico start the war by driving the Mexican forces out of the disputed border region in Texas & make the border secure.
The Annexation of Texas followed by the Thornton Affair.
At the start, no one. When the US finally ended its Civil War, president Lincoln offered arms and financial support to the Mexican president Benito Juarez.
The pro and anti-slavery movements that culminated in the American Civil War (1861-1865).
Franklin Roosevelt was the US president when WW II began in Europe.