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AUSMIN Reaffirms AUKUS, Sets Expanded U.S. Posture in Australia and $1 Billion Submarine Boost

U.S. and Australian ministers outlined concrete base upgrades, rotations and industrial integration after a confidential Pentagon review backed the pact.

Secretary of State Marco Rubio speaks as Australia's Deputy Prime Minister and Defense Minister Richard Marles, Australia's Foreign Minister Penny Wong and Defense Secretary Pete Hegseth listen at the State Department, Monday, Dec. 8, 2025, in Washington. (AP Photo/Mark Schiefelbein)
Australia's Foreign Minister Penny Wong, left, listens as Secretary of State Marco Rubio speaks at the State Department, Monday, Dec. 8, 2025, in Washington. (AP Photo/Mark Schiefelbein)
Secretary of State Marco Rubio speaks during an event at the State Department, Monday, Dec. 8, 2025, in Washington. (AP Photo/Mark Schiefelbein)
Secretary of State Marco Rubio speaks as Defense Secretary Pete Hegseth listens during a news conference with Australia's Deputy Prime Minister and Defense Minister Richard Marles and Australia's Foreign Minister Penny Wong at the State Department, Monday, Dec. 8, 2025, in Washington. (AP Photo/Mark Schiefelbein)

Overview

  • Australia will soon transfer an additional US$1 billion to expand U.S. submarine production capacity, bringing its contribution to US$2 billion so far.
  • The Pentagon has completed a five-month AUKUS review that endorses the pact and its timelines, though the findings remain confidential and stress meeting key deadlines.
  • Both sides advanced force posture plans including infrastructure works at RAAF Tindal and Darwin to support rotations of U.S. bombers, fighters and ISR aircraft, with scoping at RAAF Amberley.
  • Marine Rotational Force–Darwin will grow through logistics upgrades and prepositioned MV‑22 Osprey aircraft, with new northern and southern logistics nodes and a U.S. Oversight and Support Group in Australia.
  • Officials reaffirmed establishing Submarine Rotational Force–West as early as 2027 and set a two‑year pathway for joint munitions work, including steps toward hypersonic attack cruise missile co‑production, as Washington continues to press for higher Australian defense spending.