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While serving with the American Field Service as a World War II ambulance driver , he was twice awarded the Croix de guerre for bravery under fire , the first time on the Western Front , the second in the Libyan Desert .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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