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EarlierClash at Habersbirk13 September 1938
LaterBarbarossa at Brest Fortress1941 CE

The Battle of Westerplatte was the first battle of the German invasion of Poland, marking the start of World War II in Europe. It occurred on the Westerplatte peninsula in the harbour of the Free City of Danzig (now Gdańsk, Poland). A small forested island separated from Gdansk by the harbour channel, Westerplatte was established as a Polish military outpost during the interwar period.

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