Australian Nuclear Submarines

Australia is to become the only non-nuclear nation to have nuclear-propelled submarines which will be built in cooperation with the US and the UK.

It is the first initiative of a new enhanced trilateral security partnership announced by the leaders of the three nations in a joint statement today (16 September 2021).

The ANI has long followed the Australian submarine program with articles on progress with the replacement of the Collins Class submarine, including analysis and commentary on whether the decision to build diesel-electric submarines in Australia was the best solution; the costs of that decision; and the time it would take to deliver on it.

The Australian Naval Institute will continue to provide a range of reports, analysis and commentary.

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AUKUS subs or none: Defence chief

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Australia will be left with no submarines if it abandons the Aukus deal with the US and...

UK to buy AUKUS tech from US

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The government of the United Kingdom (UK) has requested to buy submarine combat and weapon systems, technical...

JAUKUS possibility grows closer

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By Ryosuke Hanada* JAUKUS may yet be possible. I argued in 2023 that Japan couldn’t be added to...

Keeping Collins operational

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The Government has held its fourth Product of Concern Summit in Canberra on Monday 2 March 2026...

Deficiencies in US submarine munitions

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By Alana Davis* In 2023, the Center for Strategic and International Studies (CSIS) wargamed a conflict between the...

UK sub into China’s backyard

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The Royal Navy submarine HMS Anson made a stop at Gibraltar late last month, part of a...

Australia orders long lead items for SSN AUKUS

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On 24 February it was announced that the Commonwealth Government had ordered and made a $310 million...

The case for a mixed US submarine fleet

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By Roy Wood* The U.S. Navy for decades has relied almost exclusively on nuclear-powered submarines. But the strategic...

Australia-UK SNN build symmetry

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Australia has just announced it will spend around AUS$30bn (£15.6bn) to build a large nuclear submarine construction...

Putting the UK back into AUKUS

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By David Vallance* The Royal Navy’s first contribution to Submarine Rotational Force-West (SRF-W) is on its way to...

$3.9bn towards $30bn AUKUS SSN shipyard

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The South Australian and federal governments have released plans worth $30 billion for a shipyard in Adelaide...

N Korea’s claims first N-submarine

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North Korea’s claimed construction of its first nuclear-powered submarine represents a pivotal milestone in the country’s naval...

Specia AUKUS visa needed

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By Cherie Wright and Penny Harris* AUKUS needs its own visa. The security partnership’s Pillar One needs a...

Consequences of new SNN nations

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The Carnegie Endowment for International Peace has published a research volume on the consequences of non-nuclear nations...

Responsible stewardship of SSNs

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Australia and Brazil are poised to become the first states without nuclear weapons to put conventionally armed,...

RN addresses sub maintenance delays

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The Royal Navy's Submarine Maintenance Recovery Plan (SMRP) was formally launched on 15th January, Navy Lookout reports. The...

Congressional report on Virginia class

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The following is the Jan. 26, 2026, Congressional Research Service report, Navy Virginia-Class Submarine Program and AUKUS...

An alternative AUKUS path

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By Nathaniel England* Australia currently faces two highly concerning outcomes under the current plan for AUKUS Pillar I:...

China overtakes Russia with N-subs

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China’s fast-growing fleet of advanced attack submarines has overtaken Russia’s undersea force in numbers and is rapidly...

Lone fit UK Astute N-sub heads to WA

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By Tom Sharpe* The Royal Navy has nine nuclear-powered submarines. Four of them are the Vanguard class, tasked...