Much of the Territory of New Guinea, including the islands of Bougainville and New Britain, was occupied by Japanese forces before being recaptured by Australian and American forces during the final months of the war (see New Guinea campaign).
Sebagian Wilayah New Guinea , termasuk pulau-pulau Bougainville dan New Britain , diduduki oleh pasukan Jepang sebelum direbut kembali oleh pasukan Australia dan Amerika selama bulan-bulan terakhir perang (lihat kampanye Nugini ) .