Australia–PNG Defence Treaty: An Unresearched Gamble?

For months, debate over a prospective defence treaty between PNG and Australia has gathered momentum. Negotiations were formally announced in February 2025, with leaders on both sides signalling September 16—PNG’s Independence Day—as a potential signing date. The treaty, if concluded, will represent the most binding military pact in PNG’s post-independence history. Yet amid the symbolism and political rhetoric, one fact remains stark: there has been no comprehensive academic research from within PNG critically assessing the risks and potential outcomes of such an agreement. It is important to be clear: this Defence Treaty is not the same as the Bilateral Security Agreement (BSA) signed in December 2023 and ratified in December 2024. The BSA was a broad framework covering security cooperation across policing, cyber, law and justice, and resilience building. While significant in scope, it was essentially a whole-of-government umbrella agreement. The Defence Treaty, by contrast, will b...