Australia sets 2032 end date for US submarine rotations at HMAS Stirling
Australia's Defence Industries Minister Pat Conroy has said that US Virginia-class submarines rotating through HMAS Stirling in Western Australia will stop doing so in 2032. He described the arrangement as a time-limited rotation and said it would begin in 2027, giving it a five-year span. The comments add a clearer timeline to the Submarine Rotation Force West plan, which is part of the wider AUKUS defence partnership.
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Conroy made the remarks while in Washington for talks on the submarine programme with senior Pentagon officials. Those meetings included US Navy Secretary Hung Cao and US Army Secretary Dan Driscoll, according to the supplied material. He also said he would visit a submarine factory in South Carolina and announce a $2 million contract for the use of Australian steel products in US submarines.
The minister said the rotation would end as Australia acquires its own nuclear-powered submarines and those vessels move into HMAS Stirling. He also rejected criticism that the base would become a de facto US installation, saying the American presence would be limited in time each year. However, he did not disclose how long the submarines would remain at the base annually, saying that detail related to US operational decisions.
The announcement matters because HMAS Stirling is central to the AUKUS plan to expand allied submarine cooperation in the Indo-Pacific. The arrangement is intended to support training, maintenance and operational familiarity before Australia fields its own nuclear-powered boats. It also comes as the three-country partnership faces scrutiny over cost, timing and the practical demands of building the necessary infrastructure and supply chains.
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The supplied material indicates that the rotation is known as Submarine Rotation Force West, or SRF-West, and that it is due to start next year. It also notes that large-scale logistical infrastructure is being put in place to support the arrival of American submarines, crews and their families. That has fuelled debate in Australia about sovereignty, burden-sharing and the long-term role of the base.
What remains unclear is the exact annual duration of the US submarine presence at HMAS Stirling and how the rotation will operate in practice. It is also not yet clear how the new timeline will affect wider AUKUS planning or future announcements linked to industrial cooperation. The next points to watch are the outcome of Conroy's Washington talks, the South Carolina factory visit and any further detail on the submarine schedule.
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