Here are many articles that discuss different aspects of Australia in the UN. Please read them, and you'll be able to write your own conclusions.
http://www.google.com/search?q=australia+successful+in+united+nations&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA
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How successful has Australia been in its role within the United Nations?
2 answers
thx a lot XD