Australia's commitment to the AUKUS nuclear submarine programme entered a new phase in February when Prime Minister Anthony Albanese announced the Osborne shipyard would receive $3.9 billion in initial funding. The decision signals both strategic clarity and fiscal determination. Yet it also exposes a fundamental tension: the capability Australia needs to maintain regional influence comes with a price tag many Australians don't fully grasp.
The strategic case for nuclear-powered submarines is straightforward. Australia's maritime domain stretches across vast distances with critical vulnerabilities. Conventional submarines like the Collins-class have range and endurance limitations that become increasingly problematic as the Indo-Pacific strategic environment becomes more contested. The intelligence assessment, according to sources familiar with the matter, shows that China's military modernisation has created a capability gap that Australia cannot ignore. Nuclear submarines offer the stealth, range, and endurance necessary to maintain deterrence across this vast region.
The HMS Anson visit to HMAS Stirling in February provides concrete evidence of this readiness. British and Australian personnel jointly conducted maintenance on the Astute-class submarine, a practical exercise in alliance integration that signals to potential adversaries Australia's growing capacity to operate and sustain nuclear-powered vessels. This is not theoretical cooperation; it is hands-on capability development.
Yet the fiscal reality cannot be ignored. The total estimated cost of the AUKUS submarine programme sits between $268 billion and $368 billion. The Osborne facility alone will cost approximately $30 billion. These figures dwarf other major defence acquisitions and represent a structural commitment to defence spending that will constrain other government investments for decades. The Royal Australian Navy will acquire five submarines delivered over the 2040s and 2050s, meaning most Australians will retire before the full fleet enters service.
Critics raise legitimate concerns. Timelines slip on defence projects. Costs escalate. The shipyard must be completed, staffed, and operated successfully before Australia can build its first domestic nuclear submarine in the early 2030s. The long lead times create vulnerabilities during the transition from Collins-class to SSN-AUKUS, a capability gap that strategic competitors will notice. Some argue the money would be better spent on expanding Australia's conventional submarine fleet or investing in other deterrent capabilities like long-range missiles or drone swarms.
These are serious arguments. A pragmatic budget officer would rightly ask whether all this spending delivers better security per dollar than alternative strategies. There are legitimate trade-offs between nuclear submarines and other defence capabilities, between defence spending and infrastructure investment, between national security and fiscal prudence.
The counterargument, however, addresses the specific strategic problem Australia faces. The Osborne shipyard creates sovereign capacity to maintain and eventually build nuclear submarines, reducing dependence on foreign yards during times of crisis. The submarines themselves provide capabilities no other platform can replicate across Australia's maritime domain. And the alliance signal matters. Britain's willingness to position its most advanced submarine in Australia for maintenance, and America's support for Australia's nuclear submarine programme, reinforces the credibility of AUKUS as a genuine security commitment rather than diplomatic theatre.
What this signals to potential adversaries is worth considering. A credible capability for Australia to project power across the Indo-Pacific, to maintain presence and preserve strategic options, makes the region less inviting for coercive action. Deterrence works through capability demonstrated and intention signalled. The AUKUS programme, backed by a $30 billion shipyard, signals that Australia is serious about maintaining a strategic posture aligned with its interests.
The honest position is this: the AUKUS submarines are expensive because they address a genuine strategic gap against increasingly sophisticated competition. There is no cheap solution to Australia's maritime vulnerabilities. The money will be substantial, the timelines long, and the risks real. But the capability gap the submarines address is also real, and it will only grow if Australia defers this investment.
The government should be forthright about what Australians are paying for. The cost should drive discipline elsewhere in defence and general government spending. There should be ruthless scrutiny of timelines and cost overruns. But the basic proposition stands: maintaining Australia's strategic position in the Indo-Pacific demands capabilities that only nuclear-powered submarines can provide across the vast distances that define Australia's strategic challenge.
The February announcements represent a significant commitment, both strategic and fiscal. Australia is betting that the Indo-Pacific environment will demand these capabilities, that the alliances supporting their development will hold, and that the return on this investment in deterrence and strategic autonomy justifies the burden on taxpayers. Given the trajectory of regional competition, that bet appears prudent, though only if governments maintain discipline on costs and timelines.