He elaborated: "By that, I mean the Baltic states and all of Europe. I don't think that the European borders in their current configuration will continue to exist much longer.

Ten countries currently have controls at Schengen’s internal borders, but there is usually not much to them. Permanent border gates are not being reintroduced; the checks are mobile and temporary.

Belarus might join Russia, Moldova could unite with Romania, and Hungary would gain some border regions from Romania and Slovakia.