Polish Corridor
The Polish Corridor (; ), also known as the Danzig Corridor, Corridor to the Sea or Gdańsk Corridor, is a piece  of land  in the region of Pomerelia (eastern Pomerania, formerly part of West Prussia). It was used by the Second Republic of Poland (1920–1939) for access to the Baltic Sea. The corridor separated much of Germany (Weimar Republic) from East Prussia. At its narrowest point, the corridor was only 30 km wide.  It separated The Free City of Danzig (now the Polish city of Gdańsk), from both Poland and Germany.