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Career Little is known about Joseph 's early military service , which included campaigns in the War of the Austrian Succession , the Seven Years War , the War of the Bavarian Succession , and Habsburg border campaigns against the Ottoman Empire , 1778 – 92 .
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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:
 None