When Colombia’s president, Gustavo Petro, refused military planes carrying deportees, infuriating President Trump, he revealed how heated the question of deportations has become.

The move followed a dispute between President Trump and President Gustavo Petro over deportation flights that nearly turned into a costly trade war between both countries.

Colombia isn’t the first nation to have materially countered Trump’s deportation plans. Still, its tiff with the U.S. is indicative of some lesser-known trade entanglements between North and South America—and of the potential for the Trump administration to hurt Americans’ pocketbooks in its craven pursuit of mass deportations.