Three weeks into the US-Israeli war on Iran, Darren looks to international relations theory — particularly the bargaining and war termination frameworks associated with James Fearon — to explain why this conflict is so resistant to ending. He organises his thinking around two conditions for war termination: the existence of a mutually acceptable deal, and a credible mechanism for enforcing it. Neither condition is met, and the war is actively making both harder to achieve.

Both sides are pursuing cost imposition, but with incompatible visions of what peace looks like. The US is destroying Iran’s military capacity; Iran is weaponising the Strait of Hormuz and attacking Gulf energy infrastructure. Darren examines why Trump’s coercive credibility has been undermined by the South Pars episode, why Iran’s energy war may be hardening rather than softening its neighbours’ resolve, and what Oman’s foreign minister’s extraordinary public intervention reveals about Gulf anger at both Iran and the United States.

The episode offers two speculative theories for how the war might end — one centring on Trump’s psychology and capacity for narrative reinvention, the other on whether China could help solve the credible commitment problem by offering Iran something the US cannot. It closes with a reflection on what it means for analysts, governments, and markets when the most consequential variable in the system is a single unpredictable leader. A postscript addresses Trump’s 48-hour ultimatum to Iran, issued hours before recording, threatening to destroy Iranian power plants if the Strait of Hormuz is not reopened.

Australia in the World is written, hosted, and produced by Darren Lim, with research and editing by Hannah Nelson and theme music composed by Rory Stenning.

Relevant links

The Economist, “There is plenty of scope for the Iran war to intensify,” 21 March 2026: https://www.economist.com/briefing/2026/03/19/there-is-plenty-of-scope-for-the-iran-war-to-intensify

Malcolm Moore, Rachel Millard and Verity Ratcliffe, “‘Armageddon scenario’ for gas markets as Qatar hit by missiles,” Financial Times, 19 March 2026: https://www.ft.com/content/5b66d91f-f94a-4ea1-b90f-ce62ccb15d50

James Fearon, “Rationalist Explanations for War,” International Organization, 49(3), 1995: https://web.stanford.edu/group/fearon-research/cgi-bin/wordpress/wp-content/uploads/2013/10/Rationalist-Explanations-for-War.pdf

RAND Corporation, Theories of Victory, Perspectives PEA1743-1, 2024: https://www.rand.org/pubs/perspectives/PEA1743-1.html

Brynn Tannehill, “Why the Iran War Could Last Far Longer Than Either Side Wants to Admit,” Byline Times, 20 March 2026: https://bylinetimes.com/2026/03/20/why-the-iran-war-could-last-far-longer-than-either-side-wants-to-admit/

Yaroslav Trofimov, “Iran Believes It’s Winning — and Wants a Steep Price to End the War,” Wall Street Journal, 20 March 2026: https://www.wsj.com/world/middle-east/iran-war-negotiations-demands-85555522

Adam Tooze and Cameron Abadi, Ones and Tooze podcast, “Economic Impact of Iran War,” 21 March 2026: https://www.youtube.com/watch?v=ckRRxpoUoPc

Thomas Wright, “The Disappearing Off-Ramp in Iran,” The Atlantic, 17 March 2026: https://www.theatlantic.com/international/2026/03/iran-victory-trump/686411/

Badr Albusaidi, “America’s friends must help extricate it from an unlawful war,” The Economist, 21 March 2026: https://www.economist.com/by-invitation/2026/03/18/americas-friends-must-help-extricate-it-from-an-unlawful-war

The Economist, “Operation Blind Fury,” 21 March 2026: https://www.economist.com/leaders/2026/03/19/war-in-iran-is-making-donald-trump-weaker-and-angrier

Jake Sullivan and John Finer, The Long Game podcast, Week 3 episode (interview with Helima Croft), 21 March 2026: https://staytuned.substack.com/p/transcript-the-iran-war-energy-crisis

David Sanger, “Trump Is Finally Eyeing an Exit From Iran. But Will He Take It?” New York Times, 21 March 2026: https://www.nytimes.com/2026/03/21/us/politics/trump-iran-offramp.html