There is much interest during the 2016 USA election cycle, even in Europe, about relationships between the USA and Mexico. Check out this recent article on the History News Network, by university professor Kevin Waite in the United Kingdom:
“When the image of the border-crossing Mexican rapist emerged from Donald Trump’s fevered imagination at the start of this election cycle, it struck a surprisingly resonant chord with the electorate. Since then, xenophobic appeals have been at the heart of the Republican candidate’s campaign.
“Yet well before provocateurs like Trump and Anne Coulter began spinning stories about criminal Latino immigrants coming up from the south, it was Mexicans who very rightly fretted about American immigrants streaming down from the north.
“Historically, Mexico has lost far more land, power, and resources to American immigration than vice versa. When Mexico won its independence from Spain in 1821, it was the largest nation in North America. But three decades later, it had lost over half of its landmass. The events that culminated in that dramatic territorial reduction were set in motion by American border-crossers.”