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USS Colorado to be first US submarine in Australia under AUKUS

The Virginia-class submarine will be based at HMAS Stirling from late 2027 as part of a new rotational force.

AI-assisted coverage comparison, editor-supervised · How this was made

Published
Camera IconRichard Marles says the higher-speed, longer-range vessels will help Australia defend its sea trade. (Susie Dodds/AAP PHOTOS) Credit: AAP

What this story says

  • The USS Colorado, a Virginia-class submarine, will be the first US vessel deployed to Australia under the AUKUS agreement.
  • It will be based at HMAS Stirling in Western Australia starting in late 2027.
  • This deployment is part of the Submarine Rotational Force-West (SRF-West) initiative.
  • The AUKUS agreement is a security partnership between Australia, the United Kingdom, and the United States.

Who covered it

Left 0%(0)Centre 60%(6)Right 40%(4)

Percentages are shares of the 10 outlets carrying a published leaning rating. 8 of the 18 outlets we know ran this story carry no rating and are not counted in them. Coverage measured .

Trust

50/100

Craft

60/100

Hype

20/100

18 sources · methodology

Thin on the left so far

None of the 10 outlets with a published leaning rating that ran this story are rated left.

This story is still being watched, so it is a count and not yet a finding. Coverage keeps arriving for hours after an event, and a side that has published nothing this morning may publish by tonight. If it is still true when we stop checking, we will say so plainly.

The United States has designated the USS Colorado as the first submarine to be deployed to Australia under the AUKUS security agreement. The Virginia-class submarine will be based at HMAS Stirling in Western Australia from late 2027. This deployment is part of the Submarine Rotational Force-West (SRF-West) initiative, which aims to increase regional maintenance resources and bolster a sustainment framework for US and UK submarines.

The USS Colorado is a fast-attack submarine capable of speeds exceeding 46km/h. The AUKUS agreement, signed five years ago, involves Australia, the United Kingdom, and the United States working together to promote a safe Indo-Pacific region. The rotational force will support Australia's readiness to operate its own nuclear-powered submarines.

Disagreement on submarine details

PerthNow reported that the USS Colorado is a 10-year-old submarine and that original AUKUS plans had Australia receiving two used vessels and a brand new Virginia-class submarine before building its own. This report also noted that Washington would now be sending second-hand vessels, which was described as "trash" by Tasmanian independent senator Jacqui Lambie. Free Malaysia Today News stated the USS Colorado is an 115-metre submarine armed with land-attack missiles and sophisticated torpedoes.

What the coverage left out

None of the centre-rated or right-rated reports mention the $386 billion defence pact cost estimate that PerthNow included in its full report.

Still developing. We have re-checked which outlets are covering this 4 times, most recently on 27 Oct 2026, 01:45, and will add the sides that appear.

How other outlets pictured it

Which photograph to run is each newsroom’s own choice. The leaning beside a name is that outlet’s published rating, not a claim that the pictures divide along it. Every picture is shown from the outlet’s own server and links to the article it ran in.

Virginia-class fast-attack submarine USS Colorado arrives at Joint Base Pearl Harbor-Hickam, Hawaii, on Sept. 23, 2026. (MCS2 Nicholas A. Russell/U.S. Navy)
Military TimesCentre

How each side covered it

Our own reading of the reporting listed below, written from the outlets’ articles rather than quoted from them. The reasoning is set out on our methodology page.

Left

0 rated outlets

No outlet rated left has run this story so far. We are still checking, and will say plainly if that does not change.

Centre

6 rated outlets

  • Centre-rated reports focused on the designation of the USS Colorado as the first US submarine for the rotational force in Australia. These reports highlighted that the submarine will be based at HMAS Stirling from late 2027 as part of the Submarine Rotational Force-West (SRF-West). Multiple centre-rated outlets, including Military Times and Defense News, quoted Pentagon officials announcing the assignment and mentioning Defense Secretary Pete Hegseth in conjunction with UK and Australian representatives. Naval News and Navy Times also reported on the announcement, with Naval News specifying the USS Colorado's hull number (SSN 788) and its designation as a Virginia-class fast-attack submarine.

Right

4 rated outlets

  • Right-rated reports highlighted the USS Colorado's assignment to an Australian base under the AUKUS agreement. Free Malaysia Today News stated the submarine is armed with land-attack missiles and sophisticated torpedoes. Washington Times reported that Pentagon officials announced the assignment, with the USS Colorado beginning its rotation in late 2027. Anadolu Ajansı noted that the submarine will join the AUKUS submarine force in late 2027 as Australia expands maintenance capabilities for US and British vessels.

Questions about this coverage

How did the left and right cover USS Colorado to be first US submarine in Australia under AUKUS?
Of the 10 outlets on this story carrying a published leaning rating, 0% are rated left, 60% are rated centre, 40% are rated right. Those percentages are shares of the rated outlets, not of every outlet that ran it, which was 18. The sections above set out what each side emphasised, in its own terms.
Is USS Colorado to be first US submarine in Australia under AUKUS left or right?
Too few of the outlets on this story carry a published leaning rating to say. 10 of them do, and this site does not characterise a field under 12: at that size one newsroom filing moves the share by ten points. The percentages above are the count as it stands.
Is the coverage of USS Colorado to be first US submarine in Australia under AUKUS biased?
USS Colorado to be first US submarine in Australia under AUKUS is one event reported by 18 outlets, and this page does not rate the story as biased or unbiased. What it publishes is the spread: which outlets ran it, where named rating organisations place each of them on the spectrum, and what each side chose to lead with. A leaning rating describes an outlet's record over time, not this article, and the two should not be run together.
Which side is not reporting USS Colorado to be first US submarine in Australia under AUKUS?
When we first saw this story, outlets rated left had barely covered it. Coverage accretes for hours after an event, so that is where to look rather than a verdict — the split above is the current count, and it is the one to read.
Which outlets covered USS Colorado to be first US submarine in Australia under AUKUS?
18 that we know of, every one of them listed further up this page with a link to its own report and to what we hold on the publisher. Nothing here is a summary of somebody else's summary: the outlets are named so the original reporting can be read.
Which submarine will be the first US vessel deployed to Australia under AUKUS?
The USS Colorado, a Virginia-class submarine, will be the first US submarine deployed to Australia under the AUKUS agreement. It is a fast-attack submarine capable of speeds over 46km/h.
When will the USS Colorado be based in Australia?
The USS Colorado is scheduled to be based at HMAS Stirling in Western Australia starting in late 2027. This is part of the Submarine Rotational Force-West initiative.
What is the AUKUS agreement?
The AUKUS agreement is a trilateral security partnership between Australia, the United Kingdom, and the United States. It is designed to promote a safe Indo-Pacific region and involves cooperation on defence capabilities, including submarines.

Read it at the source

18 outlets, grouped by the leaning a published rating gives them. Every headline links to the original; an underlined outlet name opens our profile of that publisher.

Left

0

No outlet in this group ran the story.

Centre

6

Right

4

Not rated

8

How did this read?

About the coverage, not about the story. We do not ask whether you agree with what happened — we have no honest use for that answer.

USS Colorado Australia deployment | MediaBias News