Notice of Entry into Force of the Papua New Guinea – Australia Mutual Defence Treaty, also known as the Pukpuk Treaty

I, Michelle Rowland, Attorney-General, under subsection 2(1) of the Defence (Visiting Forces) Amendment (Papua New Guinea-Australia Mutual Defence Treaty and Australia-United Kingdom Defence Cooperation Agreement) Regulations 2026, announce that the Papua New Guinea-Australia Mutual Defence Treaty, also known as the Pukpuk Treaty, between Papua New Guinea and Australia concerning mutual defence and cooperation, done on 6 October 2025, entered into force for Australia on 8 July 2026.