Germany–Poland border former also affected by the Silesian Uprisings). The shape of that border roughly resembled that of pre-partition Poland. After World War II, the border was drawn from Świnoujście (Swinemünde) in the north at the Baltic Sea southward to the Czech Republic (then part of Czechoslovakia) border with Poland and Germany near Zittau. It follows the Oder–Neisse Line of the Oder (Odra) and Neisse (Nysa) rivers through most of their course. This was agreed upon by the main Allies of World War II – USSR, USA and UK, at the Soviets' insistence, and, without any significant consultations with Poland (or Germany),
Finland–Russia border Finnish reindeer fence. Unlike other Western countries, the government of Finland did not protect illegal border crossers but returned them to the Soviet authorities if captured. Illegal border crossers had to get through Finland to e.g. Sweden in order to defect to the West. In the Moscow Armistice signed on 1944 between Finland, Soviet Union and United Kingdom, a small peninsula towards the Gulf of Finland, Porkkala, was rented to Soviet Union as a military base. This created in effect a southern border crossing to the Soviet exclave, operating all the way to 1956. Border crossings were in and .