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In what may prove to be the single biggest development in Australian strategic affairs since the signing of the ANZUS Treaty, President Joe Biden and Prime Minister Scott Morrison announced a new trilateral security partnership with the United Kingdom – the AUKUS pact. Along with headline-making nuclear-powered submarines, the agreement would see Australia benefit from enhanced cooperation on a range of security and technological areas. Beyond merely fulfilling the Biden administration’s promise for greater attention to the Indo-Pacific region, the agreement is a clear vote of confidence by the Australian government in the US alliance.