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
History of Latvia Latvian-Polish border was demarcated between 1933 and 1938. The earliest foreign policy goals were securing peace with Soviet Russia and Germany, gaining international recognition and joining the League of Nations. All this was achieved by the efforts of Zigfrīds Anna Meierovics. The hope of union of Baltic countries - Poland, Lithuania, Latvia, Estonia, Finland - faded after 1922. After that Latvia was the most energetic proponent of Baltic unity and Baltic Entente. On November 1, 1923 Latvia and Estonia signed a military alliance, followed by trade agreements. Latvia tried to maintain good relations with regional hegemons Russia and Germany and