<Tr> <Th> ISO 3166 code </Th> <Td> PG </Td> </Tr> <Tr> <Th> Internet TLD </Th> <Td>. pg </Td> </Tr> <P> Papua New Guinea (PNG; UK: / ˈpæp (j) uə...ˈɡɪni, ˈpɑː - /, US: / ˈpæpjuə, pɑːˈpuːə /; Tok Pisin: Papua Niugini; Hiri Motu: Papua Niu Gini), officially the Independent State of Papua New Guinea, is an Oceanian country that occupies the eastern half of the island of New Guinea and its offshore islands in Melanesia, a region of the southwestern Pacific Ocean north of Australia . Its capital, located along its southeastern coast, is Port Moresby . The western half of New Guinea forms the Indonesian provinces of Papua and West Papua . </P> <P> At the national level, after being ruled by three external powers since 1884, Papua New Guinea established its sovereignty in 1975 . This followed nearly 60 years of Australian administration, which started during World War I. It became an independent Commonwealth realm in 1975 with Queen Elizabeth II as its head of state and became a member of the Commonwealth of Nations in its own right . </P>

Which country borders papua new guinea on its west side
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