HISTORY & GEOGRAPHY
'(<a href="http://www.j-archive.com/media/2011-05-10_DJ_09.jpg" target="_blank">Sarah of the Clue Crew shows a map on the monitor.</a>)  Germany's 1939 invasion of Poland was due largely to friction over a strip of land called the Polish Corridor; it was taken from Germany and awarded to Poland by the Versailles Treaty, giving Poland direct access to this sea'
the Baltic Sea