AUKUS

A Trilateral Security Partnership

Australia, the United Kingdom, and the United States announced AUKUS in September 2021 to deepen defense technology cooperation in the Indo-Pacific. Its first major undertaking was to help Australia acquire submarines powered by nuclear reactors and armed with conventional weapons. The announcement distinguished naval propulsion from acquiring nuclear weapons. It also identified cooperation on cyber capabilities, artificial intelligence, quantum technologies, and undersea systems. [1]

The decision ended Australia’s planned acquisition of Attack class submarines from France’s Naval Group. France treated the cancellation and the handling of the new arrangement as a breach of trust between partners. President Emmanuel Macron recalled the French ambassadors to Washington and Canberra for consultations. The dispute required the three AUKUS governments to manage relations with France alongside the practical work of establishing their new partnership. [1] [2]

The Submarine Pathway

In March 2023, Anthony Albanese, Rishi Sunak, and Joe Biden announced a phased acquisition plan. Australian personnel would train with American and British submarine forces, followed by a planned rotational presence of allied submarines at HMAS Stirling in Western Australia. The United States intended to sell Virginia class submarines to Australia in the early 2030s, subject to the required approvals. A later SSN-AUKUS design would combine British design work with technology from all three countries and be built in Britain and Australia. [3]

The plan also created obligations for nuclear stewardship. Australia committed to handling the radioactive waste generated by its submarines and to working with the International Atomic Energy Agency on safeguards. The partners stated that Australia would neither enrich uranium nor reprocess spent fuel for the program; reactor units were to be delivered in a form that did not require Australian refueling. These commitments addressed the transfer of naval nuclear technology to a country without nuclear weapons. [3]

Implementation and Future Deliveries

AUKUS requires sustained work on shipyards, crews, maintenance, export controls, and nuclear regulation before Australia can operate its planned fleet. The Australian Naval Nuclear Power Safety Regulator’s 2026–27 corporate plan still described the rotational force as expected from as early as 2027 and Australian acquisition of Virginia class submarines from the early 2030s. Those dates are program plans, not completed deliveries. The same plan linked the regulator’s growth to the skills and infrastructure needed for each stage. [4]

Related Reading

• The United Kingdom and the United States
• France and the United States
• Australia and the United States