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Based upon proposals and advice from the British Military Mission in Australia , in March 1941 the Army began training company - sized units that would act independently of higher command to carry out tasks such as raiding , sabotage , and subversion .
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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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