AUKUS Submarines Keep Slipping Right: Who Pays the Strategic Price?
On the waterfront at HMAS Stirling in Western Australia, the concrete piers are ready. The maintenance infrastructure is being procured. The workforce pipeline is crawling forward. What is not ready — and by most credible estimates will not be ready until at least the mid-2030s — is the thing that is supposed to sit in those berths: a nuclear-powered submarine flying the Australian White Ensign. The AUKUS optimal pathway, announced with considerable fanfare by Anthony Albanese, Rishi Sunak, and Joe Biden in San Diego in March 2023, has since accumulated a litany of delays, cost blowouts, and congressional resistance that would embarrass any defence procurement program. For a program sold as the cornerstone of Indo-Pacific deterrence, the gap between rhetoric and delivery is becoming strategically dangerous.
The AUKUS submarine deal is not merely a hardware transaction. As scholars of Pacific security like Greg Fry have argued, the architecture of influence in Oceania is built as much on perceived resolve as on actual capability. Beijing watches timelines. Regional partners watch timelines. And right now, the timeline is stretching faster than the strategic rationale can absorb.
The Optimal Pathway's Increasingly Sub-Optimal Schedule
The March 2023 San Diego announcement laid out a three-stage plan. Stage one: Australian personnel embed in US and UK submarine programs immediately. Stage two: US Virginia-class submarines rotate through HMAS Stirling — the so-called "SSN-AUKUS West" posture — beginning around 2027. Stage three: Australia builds and operates its own SSN-AUKUS vessels, co-designed with the UK, beginning in the late 2030s.
Even on paper this schedule was ambitious. The US Navy's own Virginia-class production line has been running at 1.2 submarines per year against a requirement of 2.3. The Congressional Budget Office estimated in 2024 that selling Australia three to five Virginia-class boats between 2032 and 2038 would require either a production ramp-up Washington cannot currently fund, or withdrawals from the US Pacific Fleet that the Navy's own war-gaming explicitly rejects. The UK's Astute-class program — the technical precursor to SSN-AUKUS — ran seven years late and roughly 100 percent over budget. The successor Dreadnought-class ballistic missile submarine is already five years behind schedule and the BAE Systems Barrow-in-Furness shipyard is stretched.
Australia has now increased its defence budget to 2.3 percent of GDP — a historic high — but the money is flowing into a programme architecture that independent analysts at the Australian Strategic Policy Institute and the Lowy Institute have both described as contingent on assumptions that have not materialised. The rotation of US submarines through Perth, delayed by congressional holds and facility readiness, now looks more likely to begin in earnest in 2028 or 2029 than 2027.
Beijing's Counter-Move in the Interregnum
Pacific analysts note that China is not sitting still while Australia waits for submarines that do not yet exist. The People's Liberation Army Navy commissioned its sixth Type-093B Shang II nuclear attack submarine in late 2025 and is reportedly on track for an eighth by 2027. More relevant to the Pacific strategic calculus: the PLA Navy has established a pattern of extended patrol operations in the South Pacific, with vessels transiting through international waters north of Fiji and east of Papua New Guinea that would have been considered exceptional five years ago and are now routine.
In 2025 China also finalised port access arrangements with Vanuatu's Luganville deep-water facility for non-military resupply — a development that stopped short of the full military basing deal that leaked in the Solomon Islands framework of 2022, but which gives Beijing a logistics toehold 2,000 kilometres from the Australian coast. The Albanese government's counter-move — accelerated infrastructure investment through the Australian Infrastructure Financing Facility for the Pacific — has moved at civil-service pace against a more nimble Chinese institutional deployment. Greg Fry's concept of "strategic patience" maps well onto Beijing's approach: each incremental step is deniable, each cumulative shift is decisive.
What the Pacific Island Forum Actually Thinks
The AUKUS partners have invested considerable diplomatic capital in persuading Pacific Island Forum members that nuclear-powered submarines do not violate the 1985 Treaty of Rarotonga, which established the South Pacific Nuclear-Free Zone. The argument — that nuclear-powered propulsion is distinct from nuclear weapons — is legally sound but has landed with varying degrees of conviction across the Forum.
Fiji's government under Prime Minister Sitiveni Rabuka has been notably cautious, insisting that Pacific voices must be heard before any permanent homeporting of nuclear-powered vessels in the region. Vanuatu and Solomon Islands have been more overtly sceptical. The AUKUS partners held a technical briefing for Forum members in Tonga in August 2025 that was, by multiple diplomatic accounts, received politely but not warmly. Pacific scholar Epeli Hauʻofa's enduring concept of "our sea of islands" — a Pacific defined by connectivity and shared sovereignty rather than external power projection — finds contemporary expression in the Forum's insistence that it will not simply be a theatre for great-power competition without its own voice in the staging directions.
Australia's Department of Foreign Affairs and Trade has not released a full readout of that Tonga briefing. The Monexus request under the Freedom of Information Act, lodged in September 2025, remains outstanding.
The Industrial and Strategic Stakes by 2030
The most acute near-term risk is not military — it is perceptual. If the Virginia-class rotation through Perth does not begin in meaningful numbers by 2029, the AUKUS optimal pathway will enter its seventh year since announcement with no submarine yet delivered, rotated, or under Australian-flag construction. At that point the program becomes a political liability not just for Canberra but for Washington, which has staked significant diplomatic capital on the partnership as a symbol of extended deterrence credibility.
The stakes are not abstract. Taiwan Strait contingency planning — however reluctant Australian officials are to say so publicly — depends on Australian access to undersea domain awareness and strike capacity in the Western Pacific. Without nuclear-powered submarines, Australia's Collins-class conventionally powered boats, which will be approaching the end of their extended service lives by the early 2030s, cannot provide the range, endurance, or tactical quiet necessary for those contingencies. The Collins gap — the period between Collins retirement and SSN-AUKUS delivery — is the central vulnerability in Australian strategic planning and no amount of political messaging has yet filled it with hardware.
Greg Fry's scholarship on Pacific security has long warned against the region being reduced to a chessboard for external powers. The AUKUS program, conceived as deterrence, risks becoming instead a demonstration of Western institutional dysfunction — precisely the narrative Beijing is most skilled at amplifying across Forum capitals.
Monexus framed this piece from Canberra's delivery risk angle, not the alliance-loyalty framing that dominates Australian domestic coverage. The gap between strategic announcement and strategic capability deserves harder scrutiny than it typically receives.