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History World War I GallipoliBecause of the restrictions that the Defence Act ( 1903 ) placed upon deploying units of the Citizens Force overseas , following the outbreak of World War I , the Australian government decided to raise an all volunteer force for overseas service .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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