Antinuclear

Government backflips on nuclear-capable submarines under AUKUS

The International Campaign to Abolish Nuclear Weapons (ICAN) has warned of escalating nuclear risks after Senate Estimates confirmed the government would not stand in the way of US Virginia-class submarines entering Australian waters while armed with nuclear weapons.

The Australian Government has acknowledged it would permit visits by US Virginia-class submarines that may carry nuclear weapons in future—a direct contradiction of Foreign Minister Penny Wong’s assurance at the National Press Club in April 2023 that AUKUS submarines visiting Australia would be conventionally armed.

During Senate Estimates on Wednesday night, senior Defence officials acknowledged that there is “no impediment” under Australian policy or treaty obligations to the visit of dual-capable platforms—an aircraft, submarine or missile designed to carry either conventional weapons or nuclear weapons—and that Australia would continue to respect the US policy of neither confirming nor denying the presence of nuclear weapons.

This means Australians could unknowingly host US or UK nuclear weapons offshore—with no right to be told.

Gem Romuld, Director of ICAN Australia, said:

“The Foreign Minister’s assurance that nuclear weapons won’t be rotating through Australia is now dead in the water. It’s taken just two years for expectations of an AUKUS partner to shift, so what will come next?

If AUKUS is ‘not about nuclear weapons’, then Australia’s numerous assurances must be backed up with legal commitments. The best way to draw the line on nuclear weapons is to sign and ratify the UN Treaty on the Prohibition of Nuclear Weapons.”

The Estimates exchange centred on the United States’ nuclear-armed sea-launched cruise missile program (SLCM-N), which the US Congress has directed the Navy to develop. Experts, including CNA analyst Decker Eveleth, have publicly confirmed these weapons can be deployed on Virginia-class submarines, the same class Australia is preparing to host at HMAS Stirling as early as 2027.

National Labor policy commits the government to sign and ratify the Treaty on the Prohibition of Nuclear Weapons (TPNW). Successive Labor conferences have reaffirmed this commitment, and more than 300 federal, state and local parliamentarians have signed the ICAN parliamentary pledge.

Romuld said: 

“Australia is a strong proponent of the 1970 nuclear Non-Proliferation Treaty (NPT), an essential multilateral agreement but one that is no longer fit for purpose. The TPNW extends the work of the NPT to meet the challenges posed by today’s nuclear risks, and in finally comprehensively outlawing these weapons of mass destruction,” 

“National Labor policy commits to signing and ratifying the TPNW in government, a promise yet to be delivered. It’s time for Australia to move on from just engaging with this treaty to putting pen to paper. The Prime Minister championed it and now has a responsibility to enact his policy before Australia becomes a launchpad for nuclear war.

“Both of our AUKUS partners are heavily armed with nuclear weapons. As a nation opposed to nuclear weapons, signing the TPNW puts essential protections and future-proofing in place for our country and our region.”

December 6, 2025 - Posted by Christina Macpherson | weapons and war