Admiral Chris Barrie, chief of the Australian Defence Force from 1998 to 2002 and a commissioner on the Aukus public inquiry, has delivered the sharpest insider critique yet of the submarine program. His central charge is not that Australia shouldn't have submarines. It's that the government has substituted an acquisition for a strategy — spending $368bn-plus without publicly explaining what missions these boats will perform, against whom, and why those missions serve Australian rather than American interests. The inquiry's process was itself revealing. Both government and opposition declined to give evidence. No one from the Australian Defence Organisation appeared. The case for the single largest defence expenditure in Australian history was never formally made to the body charged with examining it. The Australian Submarine Agency's public materials assert that only nuclear-powered submarines will meet future needs, but — as Barrie notes — an assertion is not an explanation. No mission analysis, no alternatives comparison, no cost-risk framework has been shown to the public. Barrie's technical argument is precise. Nuclear-powered submarines excel at two missions: hunting other nuclear submarines (including nuclear-armed ones) and keeping pace with American carrier battle groups underwater. Conventional submarines can handle most other tasks Australia requires. If the real purpose is to operate near Chinese home ports or escort US carriers, that implies Australia is building its force structure around the possibility of a US-initiated war with China. That is a profound strategic choice being made without public debate. Meanwhile, the infrastructure commitments are hardening. From 2027, HMAS Stirling near Perth will host up to four American and one British nuclear-powered submarine on permanent rotation — not occasional visits. Up to $8bn is earmarked for base expansion. Housing is being arranged for American personnel and families in a region where locals told the inquiry about homelessness. Australia has agreed by treaty to dispose of weapons-grade spent fuel from its own future submarines, yet the submarine agency's own corporate plan names the failure to build disposal capability as a key risk with no target, timeline, or measure attached. The nuclear dimension carries its own unexamined risks. The US is developing a nuclear-armed cruise missile for Virginia-class boats — the same class Australia will host and eventually operate. Barrie asks whether Stirling could support nuclear strike operations even without weapons stored ashore, whether the base becomes a nuclear target, and what verification mechanisms exist under the Treaty of Rarotonga. These are not hypothetical questions for a base hosting foreign nuclear-powered submarines on permanent rotation starting in two years. Barrie draws a historical parallel. In 1983, the incoming Hawke government scrapped the carrier replacement program within two weeks of taking office, then commissioned the Dibb review and 1987 defence white paper — building a force around strategy rather than fitting strategy to a platform. The inquiry recommends ending the Aukus submarine plan and replacing it with a submarine capability under full Australian command, chosen to suit Australian missions rather than missions chosen to suit the submarine. The sovereignty question is the sharpest edge. Barrie defines sovereignty not as ownership of hardware or flying a flag over a base, but as the capacity to say no when allies prefer otherwise. A $368bn program that integrates Australian force structure into American operational planning, hosts foreign nuclear submarines permanently, and commits to weapons-grade waste disposal without a disposal plan narrows that capacity with every contract signed. The question is not whether Australia can say yes to its allies — it's whether it retains the ability to say no.
