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
BALTOPS port call at Gdynia represented the first visit by United States Navy vessels to Poland since 1927. Since 1993 it has been a major contributor to the NATO programme Partnership for Peace, which aims to strengthen and create trust amongst former Soviet Union states (Estonia, Latvia, Lithuania) its former satellites (Bulgaria, Czech Republic, Hungary, Poland, Romania, Slovakia and Slovenia) and NATO. All these states have since joined NATO. Common participants are (but not limited to): Canada, Denmark, Estonia, Finland, France, Germany, Latvia, Lithuania, Netherlands, Poland, Russia, Sweden, United Kingdom, United States of America (commanding country) The 26th annual maritime exercise