Battle of Westerplatte
... that the surrender of the Polish garrison at the Battle of Westerplatte on 7 September 1939 ended what has been described as the opening battle of World War II?
... that the surrender of the Polish garrison at the <b id="mwBD8"><a href="./Battle_of_Westerplatte" id="mwBEA" rel="mw:WikiLink" title="Battle of Westerplatte">Battle of Westerplatte</a></b> on 7 September 1939 ended what has been described as the opening battle of World War<span id="mwBEE" typeof="mw:Entity"> </span>II?