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Australia to host USS Colorado as first US nuclear submarine under Aukus pact

The rotation will add four U.S. submarines and one British submarine to bolster maintenance capacity and Australia’s nuclear-powered fleet readiness, officials said.

  • On Monday, the Pentagon announced that USS Colorado will be the first U.S. Navy Virginia-class fast-attack submarine assigned to Submarine Rotational Force-West, beginning rotation at Western Australia's HMAS Stirling in late 2027.
  • This assignment supports the $386 billion AUKUS pact by expanding regional maintenance infrastructure and accelerates Australia's readiness to own and operate nuclear-powered submarine capability.
  • As a Block III Virginia-class submarine, Colorado reaches speeds exceeding 46km/h, significantly outpacing the 37km underwater top speed of Australian Collins-class submarines.
  • Tasmanian independent senator Jacqui Lambie described second-hand vessels as "trash," though ministers and military brass insist used submarines remain the best operational option.
  • Defense Secretary Pete Hegseth, Defence Minister Richard Marles, and UK Secretary of State Wes Streeting confirmed the program remains "full-steam ahead" as nations prepare for a United States Submarine Maintenance Period starting later this week.
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13 Articles

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The West AustralianThe West Australian
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First AUKUS nuclear sub to come to Australia revealed

The USS Colorado will be the first American nuclear submarine to deploy to Australia under the AUKUS agreement.

·Osborne Park, Australia
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Lean Right

USS Colorado to join AUKUS submarine force in late 2027 as Australia expands maintenance capabilities for US, British vessels

·Ankara, Türkiye
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Herald Sun broke the news in Southbank, Australia on Monday, October 26, 2026.
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