Australia's Aukus Submarine Crew Shortage: Retired Admiral Warns 2026

Australia's Aukus submarine program faces a critical crew shortage, with a retired admiral warning that hundreds more personnel must be recruited to operate the future nuclear-powered fleet. The $368bn Aukus deal will see Australia acquire three to five Virginia-class submarines from the United States, but crewing them is proving a major challenge.

Retired admiral Peter Briggs said the Royal Australian Navy needs a more intensive recruitment plan to meet the demands of the larger submarines. His warning came as the Virginia-class submarine USS Colorado arrived at HMAS Stirling south of Perth for a month of routine maintenance and to help build Australian expertise.

The Scale of the Aukus Submarine Crew Challenge

The Virginia-class submarines are significantly larger than the Collins-class vessels they will replace, requiring up to 134 crew members—almost three times the number needed for the Collins class. Australia currently has five Collins-class submarines, which are becoming obsolete.

According to the Royal Australian Navy, there are 230 personnel in various stages of the US nuclear-powered submarine training pipeline. Of these, approximately 145 have completed US Naval nuclear power training and are now gaining experience on US Navy SSNs.

By 2030, the navy expects to have 400 officers and sailors trained and ready to serve on the nuclear-powered submarines. However, Briggs argues that this number may not be sufficient given the size of the new boats and the need for sustained crewing.

Why Recruitment and Training Are Critical

Operating nuclear-powered submarines requires highly specialized skills, including nuclear engineering, advanced sonar systems, and complex maintenance procedures. The training pipeline is lengthy and demanding, and Australia must rely on the US and UK to help build its capabilities.

The arrival of USS Colorado at HMAS Stirling is part of efforts to increase Australian familiarity with Virginia-class submarines. The submarine will undergo maintenance at the facility, providing hands-on experience for Australian personnel.However, the crew shortage is not just about numbers—it's about ensuring the right mix of skills and experience. Briggs's warning highlights the need for a comprehensive strategy that includes recruitment, training, and retention of submariners.

Key Takeaways from the Aukus Crew Warning

• Retired admiral Peter Briggs warns Australia must recruit hundreds more personnel to crew Aukus submarines.
• Virginia-class submarines require up to 134 crew—almost triple the Collins-class requirement.
• The Royal Australian Navy has 230 personnel in the US training pipeline, with 400 expected by 2030.
• The USS Colorado's arrival at HMAS Stirling aims to build Australian expertise.
• The $368bn Aukus deal involves acquiring three to five Virginia-class submarines from the US.

Comparing Submarine Crew Requirements

The table below compares the crew requirements of the Collins-class and Virginia-class submarines, highlighting the scale of the recruitment challenge.

The comparison shows that each Virginia-class submarine will require more than double the crew of a Collins-class boat. With plans to acquire up to five Virginia-class submarines, the total personnel requirement could exceed 600 submariners, not including support staff and shore-based roles.

What This Means for Australia's Defence Strategy

The crew shortage is a significant hurdle for the Aukus program, which aims to enhance Australia's strategic deterrence in the Indo-Pacific. Without sufficient trained personnel, the submarines cannot be deployed effectively, undermining the deal's intended benefits.

The Australian government has acknowledged the challenge and is investing in training facilities and partnerships with the US and UK. However, experts like Briggs argue that more needs to be done to attract and retain submariners, including competitive pay and career development opportunities.

The Aukus deal has also raised concerns about Australia's sovereignty and the risk of being drawn into a US-China conflict. As reported by Grand Goldman, Paul Keating warns Aukus risks Australia in US-China war, highlighting the political debate surrounding the program.

Next Steps for the Aukus Submarine Program

The arrival of USS Colorado at HMAS Stirling marks a step forward in building Australian expertise, but the recruitment challenge remains. The navy's goal of 400 trained personnel by 2030 may need to be revised upward to meet the crewing demands of the Virginia-class fleet.

As the program progresses, the Pentagon has confirmed that the Aukus submarine deal is full steam ahead, with Aukus submarine deal full steam ahead: Pentagon official confirms, signaling strong US commitment. Another report notes that the Aukus nuclear submarine deal is full steam ahead, says Pentagon, reinforcing the program's momentum.

However, transparency and accountability remain issues. The Aukus documents battle: Rex Patrick faces $150K legal fee risk underscores the ongoing struggle for access to information about the deal. Meanwhile, environmental and climate concerns continue to shape Australia's defence landscape, as seen in the retired couple wins landmark coal mine climate case in Australia, which may influence future defence decisions.

For now, the focus is on recruiting and training enough submariners to crew the new fleet. Without a substantial increase in personnel, the Aukus submarines may struggle to achieve their full potential.