Nuclear Subs in Australia Will Challenge the Nonproliferation Regime, and China

September 28, 2021
George Moore, Frank N. von Hippel

The following is an excerpt from The Hill.

President Biden and the prime ministers of Australia and the United Kingdom announced on Sept. 15, as the first action in their new AUKUS defense agreement, the sale to Australia of nuclear submarine technology to replace an existing Australian deal with France for conventional submarines. The plan is to build the submarines in Australia with assistance, and perhaps components, from the UK and U.S.

The announcement surprised many, including the French government, whose foreign minister referred to the decision as a “stab in the back.”

The Biden administration has touted the agreement as a counter to growing Chinese naval intimidation of Australia and other countries in the Indo-Pacific region. It appears likely, however, that any beneficial impacts on China will be offset by negative impacts on the nuclear weapons nonproliferation regime. Other non-nuclear-armed states, such as South Korea and Iran, are likely to be incentivized to acquire nuclear-powered attack submarines from the U.S. and UK, or perhaps Russia or China.

The AUKUS deal is especially problematic because U.S. and UK nuclear-powered submarines use weapon-grade highly-enriched uranium (HEU) as fuel. An obvious presumption therefore is that the Australian submarines too will be fueled with HEU drawn from the U.S. Cold War surplus.

Continue reading at The Hill.

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