Strip of land that gave Poland access to the Baltic Sea.
Transferred to the newly constituted state of Poland as part of the Treaty of Poland and was inhabited by a Polish majority. When Poland refused to accede to {{link=Hitler, Adolf">Adolf Hitler 's demands for extraterritorial highways across the corridor and cession of the free port city of Danzig (Gdańsk), Germany seized the pretext to invade Poland (1939), beginning World War II.