By Louis Casiano FOX News, September 29, 2026

Unchecked mass migration, particularly in Western nations where millions have settled after leaving third-world countries, tends to erode national sovereignty, one expert said — an issue President Donald Trump highlighted during his speech last week in front of other world leaders at the United Nations General Assembly.

As migrants continue to reach Western shores, those countries are grappling with stretched resources and tensions between newly arrived immigrants, some here illegally, and the native population, many of whom feel their best interests and cultural identity are being overlooked by government bureaucrats.