Papua New Guinea Is a Single Country — No "Second Largest"

Papua New Guinea (PNG) is one sovereign nation. It does not contain other countries, so there is no "second largest country in Papua New Guinea."

What PNG Does Have

• 22 Provinces (e.g., Morobe, Eastern Highlands, NCD, Western, Madang).
• Districts, LLGs (Local Level Governments), Wards.
• Major Cities: Port Moresby (capital, ~400k), Lae (~200k), Mount Hagen, Madang, Wewak, Goroka.
• Islands: New Britain, New Ireland, Bougainville, Manus, +600 smaller.

Possible Confusions

• "Second largest city": Lae (after Port Moresby).
• "Second largest island": New Ireland (after New Britain).
• "Second largest province by area": Western (Fly) Province (after Southern Highlands? — check current).
• "Second largest country in Oceania": Papua New Guinea (after Australia; ~462,840 km²).

If you meant something else (province, city, island, regional ranking), please specify.