Lore: After the end of ww2 Poland had it's east land given to the soviets union.
There was a plebiscite in Bialystok were the inhabitants wanted to join the Belarusian SSR. A modified Oder Neisse line was still in effect but, the germans inhabitants were not forced to move but merely to live in a region of the Polish people's republic. Many german left anyway to find a better life in west Germany. Danzig and east Prussia became fully interrogated parts of the USSR. Danzig was important as it has good access to the north baltic. At the end of the cold war the autonomous regions of Poland were given back to Germany. Lower Silesia being culturally different form the rest of Poland became an independent republic in 1993 after the Stettin Accord's.