175 Years of Border Invasions: The Anniversary of the U.S. War on Mexico and the Roots of Northward Migration | Portside

175 Years of Border Invasions: The Anniversary of the U.S. War on Mexico and the Roots of Northward Migration | Portside: 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. A near-continuous series of invasions—military, political, and economic—moving from north to south has helped produce the poverty, violence, and insecurity driving people to migrate from south to north.