East Elbia
East Elbia (German: Ostelbien) was an informal denotation for those parts of the German Reich until World War II that lay east of the river Elbe. The region comprised the Prussian provinces of Brandenburg, the eastern parts of Saxony (Jerichower Land) and the Kingdom of Saxony (Upper Lusatia), Pomerania, Silesia, East Prussia, West Prussia and Posen (from 1922 Posen-West Prussia) as well as the free states of Mecklenburg-Schwerin and Mecklenburg-Strelitz.