Transit of German troops through Finland and Sweden Union immediately requested a similar but more far-reaching concession from Finland, which invited the Third Reich to trade similar transit rights through Finland in return for weaponry lacked by the Finns. This was the first significant proof of a changed, more favorable, German policy vis-à-vis Finland, that ultimately would put Finland in a position of co-belligerence with Nazi Germany in the Continuation War against the Soviet Union (June 25, 1941 – September 4, 1944). After Denmark and Norway were invaded on April 9, 1940, Sweden and the other remaining Baltic Sea countries became enclosed by Nazi Germany and the Soviet
Poland–Russia border of the People's Republic of Poland and the Soviet Union, including the Border Agreement between Poland and the USSR of 16 August 1945. While the actual border line remained unchanged following the fall of the Soviet Union, the breakdown of the Soviet Union into a number of post-Soviet states transformed the Poland-Soviet Union border into a Poland-Russia, Poland-Lithuania, Poland-Belarus and Poland-Ukraine border. The Poland–Russia borders were confirmed in a Polish-Russian treaty of 1992 (ratified in 1993). The Poland–Russia border is that between Poland and the Kaliningrad oblast of Russia, which is an exclave, unconnected to the rest of Russia. The