The head of state during the Mexican-American war was James K. Polk who won his election through mandate of Manifest Destiny which is why the United States was so aggressive in acquiring the lands owned by Mexico.
In 1846, the U.S. invaded Mexico in the Mexican War. The war resulted in the United States annexation of Texas, New Mexico, and California.
On 13 May 1846.
Mexico fought against the United States. It is known as the Mexican-American War (1846-1848)
It wasn't sold: it was lost to the United States during the Mexican-American War (1846 - 1848).
When the United States defeated Mexico during the Mexican-American war (1846-1848).
1846 to 1848
1846-1848
It wasn't sold; it was lost to the United States during the Mexican-American War (1846-1848).
(1846-1848) The war between the United States and Mexico in which the United States acquired one half of the Mexican territory.
I guess you mean NEW Mexico. That would be the United States, after the Mexican-American War (1846-1848).
At the end of the Mexican-American War (1846-1848)
The Mexican-American War (1846-1848).