DW DOCUMENTARY interesting how Europe and the German Army are dealing with their Immigration issue.
Goes far beyond just a border wall. They set up check points on the African continents and turn people away with Military Force and Patrols
https://www.youtube.com/watch?v=SnOXx6ZBWRo&t=9s
South Korea is way ahead. Samsung put up sentry guns on the border to North Korea. Automation!
Or be like the hypocrite macron, and just dump them into Italy.