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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Nuclear subs: learning from South Korea

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By Euan Graham* Australia and South Korea are both acquiring nuclear-powered attack submarines, a parallel step-change in their...

AUKUS: staying in elite submarine group

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AUKUS Pillar One will keep Australia in a shrinking group of countries operating submarines in coming decades,...

China’s submarine-building dominance

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By H I Sutton* More countries are building and operating submarines today than at any point in modern...

Canada and Australia’s different submarine paths

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By John Harvey* Canada and Australia are natural comparators: sparsely populated, resource-rich, English-speaking Westminster democracies on continent-sized landmasses,...

Australian role in Canada’s submarines

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Australian specialist battery manufacturer PMB Defence has been selected to supply batteries for one of the contenders...

AUKUS more than detering China

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By Jennifer Parker* The AUKUS ‘independent’ inquiry opened last week with a familiar list of concerns from long-time...

What next for AUKUS Pillar II

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On 30th May, the defence secretaries of the three AUKUS partner countries – the United Kingdom (UK),...

South Korea’s path to nuclear submarine

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South Korea has unveiled an initial roadmap for the development of nuclear-powered submarines, with plans to introduce...

All five UK Astute N-subs in dock

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With the Chief of Defence staff warning that the UK is in "the most dangerous period" in...

Used subs is a minor adjustment

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By Jennifer Parker* Much of the reaction to this week’s AUKUS announcement(Opens in new window) that Australia will...

Used Virginia-class subs for Australia

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Defence minister Richard Marles  has said Australia is saving money and simplifying the navy by taking old...

Korea’s plan for nuclear sub

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On Tuesday, May 26, South Korea’s Ministry of National Defense announced the “Basic Plan for the Development...

A fallback for risky Collins LOTE

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By Richard Gray*  The reduced Collins-class submarine Life-of-Type Extension (LOTE) program, announced on 19 May, will cost more...

ANAO report on Collins Class Life of Type Extension

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On 22 May 2026 the Australian National Audit Office (ANAO) released its report Defence’s Collins Class Submarines...

Collins class life extension

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On 19 May the Commonwealth Government announced its approach to extending the service life of the RAN’s...

Re-sequencing SNN-AUKUS

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By Nathaniel England* In light of recent developments, Australia needs an alternative approach for transitioning to SSN-AUKUS. Under...

Port Kembla cited as N-sub base

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A proposed nuclear submarine base in Port Kembla “could be a target for Australian military adversaries”, previously...

Russian N-subs in the Pacific?

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By Carl Janz* Strategists in Canberra should factor in the plausible risk of Russian participation in a Western...

Naval defence without AUKUS Pillar I

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By Michael Keating and Jon Stanford* Back in 2021, the then prime minister, Scott Morrison announced the AUKUS...

UK ‘unserious’ about naval defence

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By Jake Thrupp and Alastair Walton* Australia should have a big concern. Britain, a country that Australia is relying...