It will allow Australia to field nuclear-powered submarines that will easily link with American and British submarines across the region.
“This is a fundamental decision – it binds decisively Australia to the United States and Great Britain for generations,” a senior Biden administration official said in a briefing call.
“It is the biggest strategic step Australia has taken in generations.”
Johnson hailed the new collaboration between “natural allies”.
“While we may be separated geographically, our interests and values are shared,” he said.
“The AUKUS alliance will bring us closer than ever, creating a new defence partnership and driving jobs and prosperity.
“This partnership will become increasingly vital for defending our interests in the Indo-Pacific region and, by extension, protecting our people back at home.”
The landmark partnership comes on the 70th anniversary of the ANZUS alliance and the anniversary of the Battle of Britain. The British government said the partnership would protect citizens and support a peaceful and rules-based international order.
Britain said the scoping phase of the new submarines for the Royal Australian Navy would take 18 months and the design and build would create hundreds of scientific and engineering jobs in the UK.
The leaders said in a joint statement that the new nuclear submarines would come online at the “earliest achievable date”. It is not yet clear if the first submarine will be ready this decade.
Nuclear-powered submarines are considered more potent than conventional submarines because they operate more quietly and can last for longer periods in the ocean. They are essentially undiscoverable because they do not need to expel exhaust gases.
American officials said the three countries had agreed to identify the “optimal pathway” to deliver the nuclear submarine technology to Australia within the next 18 months.
The far-ranging “trilateral security partnership” will also involve co-operation on missile capabilities, cyber, artificial intelligence, quantum computing, research and development, and industrial supply chains.
Other capabilities are expected to be added. Political and military leaders from Australia, the US and UK will hold regular meetings as part of the partnership, deepening the close relationship that already exists via the elite Five Eyes intelligence-sharing network.
The US administration official said: “I think this is an historic announcement and it reflects the Biden administration’s determination to build stronger partnerships to sustain peace and stability across the entire Indo-Pacific region. This new architecture is really about deepening co-operation on a range of defence capabilities for the 21st century.”
The official said that Biden did not explicitly discuss the new partnership in a telephone call last week with Chinese President Xi Jinping.
While the three governments stressed the announcement was not aimed at any particular country, Eric Sayers, an expert in Asia-Pacific security policy at the American Enterprise Institute, said: “This is solely and 100 per cent about China and we should stop pretending it is anything else. There are no ifs, ands or buts about it.”
Sayers said the US and UK were inviting Australia into an exclusive club by agreeing to share such a “highly sensitive technology” as nuclear propulsion.
“This is a significant step by the US and UK to empower one of our closest allies in Asia with an advanced capability that doesn’t just get offered to anyone,” he said. “This is one of the most special and unique ways that countries can co-operate.”
Sayers said a decade would be a realistic but still ambitious timeline for the submarines to be fully operational.
Defence Minister Peter Dutton met with US Defence Secretary Lloyd Austin at the Pentagon on Thursday (AEST) ahead of meetings the following day alongside Foreign Minister Marise Payne and Secretary of State Anthony Blinken.
The annual Australia–US Ministerial Consultations (AUSMIN) meeting will be followed by Morrison’s visit to Washington next week for meetings with Biden and the other leaders of the “Quad” nations.
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