Australia Connects AUKUS Base to New Subsea Cables
On November 15, 2025,
Posted by George ,
Australia’s AUKUS Base to Connect to New Subsea Cables to Boost AI Capacity
By Byron Kaye, Reuters
November 13, 2025
SYDNEY, Nov 14 (Reuters) – Australia’s AUKUS submarine fleet base and its vicinity are being
quietly connected to three powerful new undersea internet cables planned by Alphabet’s Google
(GOOGL.O), opens new tab and SUBCO, documents viewed by Reuters show.
The
HMAS Stirling naval base on Australia’s west coast will house four U.S.-commanded Virginia submarines from 2027, placing the U.S. Navy on the Indian Ocean’s rim as Washington and Canberra step up surveillance of Chinese submarine activity.
The superfast cables planned by Google and local company SUBCO, which between them would span the Indian Ocean to Africa and Asia, and connect Australia’s east and west coasts, land at or near HMAS Stirling, placing the base at the centre of a rapidly expanding network as Australia’s military seeks to bolster its digital resilience.
SUBCO said a new high-capacity cable connecting Australia’s east and west coasts will include a branch to HMAS Stirling, while public materials for the project only mention a Perth city landing, 60 km (37.28 miles) north.
“These new routes being built by SUBCO and Google are critical to delivering the capacity and resilience required not just as a safe and secure hub for the entire region but also for Australia’s AI ambitions,” founder Bevan Slattery said in a statement to Reuters.
SUBCO in 2022 completed the first Australia-Oman cable, which
Reuters reported was part-funded by the Pentagon to include a “secret” branch to the joint U.S.-UK air base at Diego Garcia.
STRATEGIC ADVANTAGES
Google’s plans include a cable north to Australia’s remote Indian Ocean outpost of
Christmas Island, and another across the Indian Ocean to Africa, with both scheduled to land in Madora Bay near the HMAS Stirling naval base.
A Google spokesperson said the landing facility will be “located inland in an industrial zone,” declining to give further details.
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