Operation Weserübung's effects on Sweden became strategically encircled by the German-Soviet pact. Since the Baltic states; Estonia, Latvia, and Lithuania; had been forced to accept "limited" Soviet forces on their soil, in the autumn of 1939, they were de facto more or less in a state of occupation. For Sweden and Finland, this meant that the only possible trade route to nations other than Germany and the Soviet Union, was through Petsamo harbour, in the far north of Finland. This seriously hampered the supply situation in both these nations. It also meant that an invasion of Sweden could be launched from almost any direction. Sweden
Germany–Poland border German reunification, the border became part of the eastern border of the European Community, then that of the European Union. For a period, it was "the most heavily policed border in Europe". After Poland joined the European Union in 2004, the border controls were relaxed in agreement with the Schengen Agreement to eliminate passport controls by 2007. The modern borderlands of Poland and Germany are inhabited by about one million of those countries' citizens within the counties on each side. Germany–Poland border The Germany–Poland border (, ), the state border between Poland and Germany, is currently the Oder–Neisse line. It