the cause was land, a border dispute.
"We didn't cross the border; the border crossed us." (APEX)
the Germans wanted the Mexicans to attack usa to avoid their intervention but the Americans found out about it
They were contested, with the Mexicans claiming that it was the Neuches River and the Texans insisting that it was the Rio Grande.
The Mexico Cession gave the US most of the west and forced the Mexicans to accept the border with Texas as the Rio Grade.
Mexico did have the "Home Field Advantage", but it was not a contest between equals.
All border states were part of Mexico in the past, until the Mexican-American War (1846-1848). As such, there has been an important presence of Mexicans due to cultural and demographic affinity with Mexico. This has resulted in many immigrants looking for places where they "feel at home", or where family ties are present (i.e. relatives already living in the US), namely southern Texas, Arizona, New Mexico and California.
All border states were part of Mexico in the past, until the Mexican-American War (1846-1848). As such, there has been an important presence of Mexicans due to cultural and demographic affinity with Mexico. This has resulted in many immigrants looking for places where they "feel at home", or where family ties are present (i.e. relatives already living in the US), namely southern Texas, Arizona, New Mexico and California.
some Mexicans became part of the united states when it won their land during a war
avoid closing in on the China border at the Yalu river
avoid closing in on the China border at the Yalu river
they came here by crossing the border and going on the border