Australia's government has described the US submarine presence at HMAS Stirling in Western Australia as an enduring element of American force posture, after conflicting ministerial statements raised questions about the duration of the AUKUS deployment. Around 1,000 US military personnel and some of their families are expected to move to the area.
Industry Minister Pat Conroy had said the current US presence would effectively end in the early 2030s as Australia began operating its own nuclear-powered submarines. He also said Submarine Rotational Force-West, due to start next year with up to four US Virginia-class boats, would begin to fade as the Australian fleet entered service.
Conroy added that the United States was likely to retain some submarine presence, but that future governments would decide its form. Opposition defense spokesman James Paterson responded that the comments amounted to an eviction notice for the US Navy before the rotational force had arrived.
Defense Minister Richard Marles then stated that the rotational force at HMAS Stirling was intended to be an enduring feature of the US military posture in Australia. Conroy issued his own clarification agreeing that the American presence at Stirling would be enduring.
The disagreement leaves a distinction between a permanent base and a continuing rotation. Australian ministers maintain that HMAS Stirling will not become a permanent US base, while the movement of personnel, families and support arrangements gives the deployment characteristics of a long-term presence.
The US Navy has re-established Submarine Squadron 3 and plans to place its headquarters at the Western Australian facility. The squadron previously operated from Pearl Harbor and was decommissioned in 2012.
US naval officials describe Stirling as a site for keeping submarines ready for operations. Rear Admiral Chris Cavanaugh said a forward-positioned submarine squadron in the Indo-Pacific would increase American presence, agility and responsiveness across multiple missions.
Local political figures also anticipate continuing integration with the surrounding community. The public dispute over terminology adds to wider criticism of AUKUS over sovereignty, strategic freedom and the transition from US rotations to Australia's own nuclear-powered submarine capability.
