Amid renewed fear mongering about an “invasion” at the U.S.-Mexico border, this week’s 175th anniversary of the 1846–1848 war the U.S. government instigated with Mexico is a reminder that throughout U.S. history, invasions have gone almost exclusively from north to south, not vice versa.
![Flickr, common license, https://www.flickr.com/photos/west_point/48397922177/in/photostream/]](https://mronline.org/wp-content/uploads/2021/04/David-Vine-United-States-of-War-COHA-800x445-1-200x200.jpg "175 Years of border invasions: The anniversary of the U.S. war on Mexico and the roots of northward migration")
