OPINION | AUKUS: Much ado about HMAS Stirling

In June, the Australian Government announced additional implementation steps, including the establishment of Naval Support Activity Stirling to support US personnel, contractors, and their families rotating through the base. This reflects the routine fact that a visiting force must maintain discipline, family support, logistics, and command arrangements for its own people while operating in partnership with a host nation.

Defence states plainly that the American and British boats will rotate through Stirling rather than be permanently based in Australia, while the purpose of the arrangement is to build the operational, maintenance, regulatory, and stewardship capacity required for Australia’s own future nuclear-powered submarines from the early 2030s.

That reality matters because much of the current commentary turns on whether Australia should candidly call this a “base.” Yet the more useful question is not semantic but strategic: whether hosting friendly naval forces at Stirling is aberrant or consistent with Australia’s longstanding defence geography.

On that score, the answer is clear. The west coast has been identified for more than a century as essential to Australian maritime strategy and, at key moments, as the natural hub for allied naval presence.