Here are the correct matches for the events of World War II with their descriptions:
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1939 German invasion of Poland
- Blitzkrieg tactics used to occupy a country that sparked the start of World War II
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Vichy government in France
- a puppet government in an occupied country
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Battle of the Atlantic
- the battle that resulted in the loss of many merchant vessels
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Battle of Britain
- an air war that targeted ports, industrial centers, military facilities, and civilian areas
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Siege of Leningrad
- an attack by air and land on a major industrial port city
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bombing of Pearl Harbor
- an attack that brought the United States into the war