look on a map it should be the whole south-west territory around mexico. but they already had sertain states in that area but not the whole state.(I think).
California, Arizona and New Mexico.
The United States.
Mexico and the United States.
The Mexican States of Alta California and Nuevo Mexico.
Mexico and the United States.
The United States and Mexico.
The Mexican States of Alta California and Nuevo Mexico.
Mexico and the United States.
Mexico and the United States.
The United States and Mexico.
Northeastern United States.
Mexico never had states. And I am sure there were some Mexicans supporting U.S.A during the war.
The Mexican-American War (1846-1848).