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AUKUS to develop unmanned undersea vehicles, Pentagon chief says

Published by Global Banking & Finance Review

Posted on May 30, 2026

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· Last updated: May 30, 2026

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AUKUS to develop unmanned undersea vehicles, Pentagon chief says

Trilateral Collaboration on Advanced Defence Technology

SINGAPORE, May 30 (Reuters) - The United States, Britain and Australia are working together to develop unmanned undersea vehicles as part of their trilateral AUKUS defence pact, U.S. Secretary of Defense Pete Hegseth told reporters on Saturday.

AUKUS "Pillar Two" and Technology Initiatives

The programme comes under AUKUS's so-called "Pillar Two" to develop advanced defence technology including quantum computing, undersea, hypersonic, artificial intelligence and cyber technology.

Signature Project: Multi-Mission UUV Payloads

"The signature project will deliver a suite of highly adaptable multi-mission UUV payloads designed to support undersea operations and maintain our collective advantage in the maritime domain," Hegseth said.

Strategic Context and Regional Implications

Formed by the three countries in 2021, AUKUS is part of their efforts to push back against China's growing power in the Indo-Pacific region.

China's Response to AUKUS

China has called the AUKUS pact dangerous and warned it could spur a regional arms race.

Statements from Defence Leaders

Britain's Defence Secretary on Technological Advancements

"This will rapidly give our forces the very most advanced battlefield technologies as together we produce a range of cutting-edge sensors and weapons systems for undersea drones," said Britain's Defence Secretary John Healey.

Reflections on AUKUS Progress

"For too long in AUKUS, we talked too much and delivered too little," said Healey, who was talking alongside Hegseth and Australia's defence minister on the sidelines of the Shangri-La Dialogue in Singapore.

Reporting Credits

(Reporting by Xinghui Kok, Writing by Devjyot Ghoshal; Editing by Jacqueline Wong and Ros Russell)

Key Takeaways

  • AUKUS Pillar II focuses on collaborative development of advanced maritime technologies, including UUVs for intelligence, surveillance and seabed warfare, enabling networked autonomy across the three navies (cfr.org).
  • One priority includes integrating torpedo‑tube launch-and-recovery systems for small UUVs into submarines, streamlining deployment and covert operations from undersea platforms (defensenews.com).
  • Recent milestones feature successful trilateral exercises such as Autonomous Warrior/Maritime Big Play, testing multi-environment autonomous systems, and trials of large uncrewed underwater vehicles like the UK’s Excalibur XLUUV, operable remotely over long distances (defense.gov).

References

Frequently Asked Questions

What is AUKUS working on according to the Pentagon chief?
AUKUS is developing unmanned undersea vehicles as part of its defense pact.
Which countries are part of the AUKUS defense pact?
The United States, Britain, and Australia form the AUKUS defense pact.
Who announced the joint development of undersea vehicles?
U.S. Secretary of Defense Pete Hegseth announced the development in Singapore.
Where was the announcement about AUKUS development made?
The announcement was made in Singapore.

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