Imagine a scenario in which Australia finds itself in a military standoff with China but does not have the nuclear-powered submarines it was promised under the AUKUS pact.
In such a scenario, Chinese warships would be threatening critical sea lanes around Australia, regional allies would be scrambling to respond in a timely fashion but would likely fail, and Australia, lacking its promised undersea warfighting capabilities, would be left in an untenable strategic situation. Such a scenario might have sounded far-fetched when AUKUS was first announced with great fanfare on 15 September 2021.
The AUKUS Submarine Problem
Today, however, such a strategic nightmare is not only plausible – it is dangerously likely.
And this is not just a cautionary tale dealing with AUKUS and Australia. If the United States fails to deliver the promised submarines to Australia, what might that say about Washington’s security commitments to other American allies?
Canada, for example, faces its own set of challenges as it seeks to shore up its security in the North Pacific, the Arctic, and the North Atlantic. While the Trudeau government has largely failed to revitalize Canada’s armed forces, there are promising signs that the next government will begin to get the country’s act together when it comes to national defense.
As this upgrading of defense capabilities unfolds, it is inevitable that Ottawa will rely on the United States to provide that access to advanced military systems – similar to the way that Australia is relying on the U.S. to provide Virginia-class submarines under the AUKUS agreement.
Should the U.S. not deliver the promised boats to Australia, Canada will have to rethink the extent to which it can rely on the U.S. to help rebuild its own military in the coming years.
For Australia, the collapse of the AUKUS submarine deal would not merely be a strategic challenge; it would be a strategic catastrophe. Canberra has already burned bridges with Paris by canceling a previous submarine contract with French shipyards – and doing so in a way that humiliated France. Should the U.S. fail to deliver, Australia will find itself with neither the submarines it needs nor an alternative supplier.
The lesson for Australia is perhaps obvious: dependence on American promises to deliver military goods can leave a country stranded when the political winds shift. The lesson for Canada should be no less obvious.
The grim strategic reality is that the United States Navy has its own pressing needs. With an aging submarine fleet and mounting concerns about naval competition and potential conflict with China, it is perfectly rational for the U.S. to privilege its own strategic interests over promises to an ally – even if those promises were initially made in good faith.
Every Virginia-class submarine delivered to Australia is one less U.S. naval asset available to deter or defeat China. In an era of “America First,” the Royal Australian Navy could easily find itself at the back of the queue when it comes to delivery of submarines from American shipyards.
And, although the details will inevitably differ, the same could be true for Canada. Promises of advanced military technology from the U.S. being honored should not be taken for granted, especially in the current climate of economic friction between the two countries. With trade disputes simmering, the risk of a prolonged economic war is very real.
Such tensions could spill over into defense cooperation, with Washington using access to advanced military technology as leverage. And even if these economic tensions abate in the near future, the example of AUKUS should serve as a stark reminder to Ottawa: if geopolitical or economic priorities shift, promises to deliver always scarce weapons systems can be rendered moot overnight.
So, as Canada begins to revitalize its military in light of the evolving multipolar order, the lesson from AUKUS is clear: just as Australia might not receive its promised submarines if American priorities shift, Canada, too, cannot assume that advanced military technologies it will inevitably need from the U.S. will materialize as promised.
When push comes to shove, Washington will always prioritize its own military needs, leaving allies vulnerable and exposed. Canada’s vulnerability is further exacerbated by the United States’ own lagging naval and air acquisition programs, which provide powerful incentives for Washington to crowd out its allies when it comes to allocating always-scarce weapons systems. Ottawa must therefore avoid the strategic folly of assuming that American military generosity will always flow when needed.
The AUKUS submarine saga, then, offers a sobering lesson for Canada. Ottawa must not find itself in the same vulnerable position as Canberra – waiting in line for critical military assets while Washington prioritizes domestic needs.
If the U.S. Navy’s own demands take precedence over delivering Virginia-class submarines to Australia, why should Canada expect to receive advanced military systems that the Pentagon decides the U.S. desperately needs, even if an agreement to provide those systems has been signed?
For Canada, the path forward is obvious if somewhat daunting. It must invest in self-reliance, particularly in critical domains like the Arctic, the North Pacific and the North Atlantic. This means not only strengthening its domestic defense industry but also enhancing its defense-industrial partnerships with other allied countries, whether in Europe or the Indo-Pacific. Ottawa should be wary of putting all its defense eggs in the American basket, especially when that basket might not be as stable as once thought.
Ultimately, the AUKUS submarine saga is a litmus test for the durability of alliances in a world where national interests reign supreme. Suppose the United States is unwilling or unable to prioritize Australia’s needs. In that case, Canada should not expect preferential treatment when it comes to defending its own critical strategic geographies – especially in the currently fraught environment. Ottawa must wake up to the reality that defense deals with the United States are not sacred covenants.
Rather, they are transactional arrangements, subject to change based on shifting geopolitical priorities – especially if President Trump heralds a profound cultural shift to an “America first” strategic vision and posture.

Block IV Virginia-class Submarine.
What Happens if the AUKUS Submarines Never Sail?
The hard truth is that in the anarchic world of international politics, nations must ultimately rely on their own capabilities to secure themselves and their interests. If AUKUS submarines never arrive in Australia, it will not just be a story of failed procurement but a cautionary tale about the dangers of over-reliance on a superpower that increasingly sees its own interests as paramount.
Like Australia, Canada must take heed or it too could be left adrift, unprepared for the stormy seas ahead.
About the Author: Dr. Andrew Latham
Andrew Latham is a non-resident fellow at Defense Priorities and a professor of international relations and political theory at Macalester College in Saint Paul, MN. Andrew is now a Contributing Editor to 19FortyFive, where he writes a daily column. You can follow him on X: @aakatham.

waco
March 7, 2025 at 10:52 am
The famous Aussie media and many famous Aussie politicians have constantly been BADMOUTHING Donald trump even way before his election win, and still doing so it today.
It would be completely out of character for trump to provide those loudmouthers or loudsuckers with US state-of-the-art nuke submarines.
Anyway, keir starmer or macron could easily provide Canberra with their state-of-the-art nuke subs, later with accompanying nuke missiles, as well.
James
March 8, 2025 at 7:49 am
In a war against China Trump needs Australian submarine, bomber, and marine bases for US forces.
Jim
March 7, 2025 at 11:11 am
I suppose it’s too late for Australia to call up the French and see how fast those diesel-electric submarines which were almost contracted, but at the last minute, the U. S. intervened and put pressure on Australia to go with the nuclear powered U. S. submarines.
… and Australia went with the U. S., not France.
Nuclear is better, but not if you don’t get them delivered on time.
Also, diesel-electric has advantages in easy maintenance, potentially in numbers of submarine delivered in the shortest time-frame.
I know the cow’s out the barn door on the diesel-electrics, but, all of a sudden, they’re look better all the time.
No deliveries, no nuclear submarines.
Australia has a submarine gap.
JingleBells
March 7, 2025 at 11:41 am
People in important positions or in high positions should guard their tongues when it comes to dealing with trump.
President trump doesn’t hold much regard for people who diss him at the drop of a hat.
Anyway, nuclear subs are strictly for offensive operations due to their range and size. Trump isn’t at all keen to start a war in the western pacific unlikely biden.
Under biden, the US air force has been working with the RAAF for the last several years to put into service the spanking new hypersonic air-launched HACM which reputedly has a range of 2,000+ km.
Surely, the PLA isn’t unaware of that development. It will very likely already have its mobile DF-26s (5,000 km) aimed directly at Darwin, pine gap, and maybe even sydney.
Swamplaw Yankee
March 7, 2025 at 5:29 pm
Ahh, the wonders of Sharia Law. Canada has implemented Sharia Law. So, has Australia implemented as well?
Canada seems to be very adrift. But, the graphics favour Australia. The island adrift is easy to conceptualize. Canada next to the huge armed Elephant, less so.
So, Canada of today has a near zero defence budget. Remember, it has zero air capability to detect any of the zillions of orc muscovite elite nuclear submarines loitering about Hudson Bay, James Bay or the Arctic. The leftie pinkoe types of Canada refused to purchase such air based detection capabilities.
The orc muscovite nuclear subs can land in James Bay and launch missiles galore into the Yankee heartland. A few thousand orcs can invade with a drone armada and be battering down Buffalo or Lewiston New York in 6 hours. Yes, every lefty pinkoe in Canada will grab a long 2 x 4 and March up the 400 super highway, till they get wiped out by a orc muscovite drone. Remember, the leftie pinkoes of Canada have very brazenly stolen every pistol or long gun from law abiding Canucks. The pinkoes, however, do allow criminal types to arm themselves to the teeth. So, wooden hockey sticks with special war pennants will be issued at the Toronto Maple Leaf NHL hockey area as lethal orc repellant armlaments.
The eternal war against ethnic Ukrainians is 100% defacto ignored by the Canadian version of the Yankee inner beltway Aquarium.
The Ukrainian-Canadian diaspora is about 10% of the population and somewhat alert. So, the leftie pinkoe does throw some pennies and nickels at this voting bloc. The PR panels of the Canadian version of Potemkin Village are updated and vividly painted by the Canuck elite to entertain their Canadian version of Tibetans.
Yeah, nice that the Ukrainian-Canadian diaspora is alert about the ancient orc muscovite elite need to genocide their Ukrainian relatives. So, a tiny flow of military hardware has been initiated by Canada. Canada sends not enough to make a effective contribution to the defensive needs of Ukraine, but enough nickels are allocated to vivid PR new panels of the Potemkin Village version that Canada emits. The local Ukrainian-Canadians are in thralldom as the Ukrainians clearly see the Yankee elephant walking about just across the Niagara River. The Ukrainians look south and see the elephant tusk-up + roar that there will be zip Yankee effort to save any Little Ukrainian girls and boys kidnapped by the orc muscovite slave sex traders since 2013. Who the hell in the USA cares if the ancient slave sex traders updated their genetic ethnic Russian need to kidnap little Ukrainian girls and boys.
Shit, de facto, the aquarium crowd claims the whole Canada thing needs to be using US stamps and coins anyway!
The orc muscovite elite has filled Canada with its ethnic subversives. The orc ethnic in Canada can buy and ship any items that their relatives, that is Putin, need in the Russian motherland.
The Sharia Law Ontario entertains lethal enemies of the USA and Israel. The world vividly viewed local Sharia radical break down in emotional ecstacy as the visual images of sexually assaulted Jewish faithful filled their 5G screens. Ask any Rabbi. The example that some Yankees might partially understand is the well financed Bin Laden HQ on Jameson Ave in South Parkdale that ran the 9-11 operation. The Gog Muslims often tussled with Adroit Tibetan diaspora Buddhist monks who well understood how the USA, + Canada too, did zip from 1949 to 1959 to stop the Muslim Han from using established Bolshevik tactics to ethnic cleanse their families from their ancient Buddhist soil. The USA idiotically claimed the big brain inner Yankee aquarium knew zero about Tibet in 1948-1959 as Alger Hiss + Roosevelt handed over all Japanese Military Hardware to a crazed little Han group led by Mao and guided by Stalin.
Just as the existing DNI claims to know zip about the established orc muscovite elite ring that very openly renamed the public school right next to the Bin Laden Gog HQ in South Parkdale. The orc muscovite cell openly dumped the historical existing Canadian Name of Queen Victoria and renamed the local public school after a leftie-pinkoe that was a faithful DEI knee jerk.
Yeah, supply nuclear technology of any sort to Australia and/or Canada. The existing Rosenberg + Gog network in Canada will technology transfer to the slave sex trader muscovites and/or Gog homeland with no problem. The Yankee DNI is soundly snoring. Is there not a Shakespeare about to turn this licensed example of Potemkin Village deception into literature? The games afoot! At least I speculate it is! -30-
redmi
March 7, 2025 at 6:14 pm
Man, I night and day, been long worrying about three doomsday (ww3) weapons pursued by DoD under joe Biden or genocide joe.
HALO, HACM and LRSO.
Now, it appears that Biden during his admin was also pressing DoD on two OTHER doomers, LRHW and typhon.
LRHW has a range of 1,700 miles and Typhon 1,500 miles.
AUKUS ? Man, it’s superfluous.
Those missiles mentioned above are all capable of flying right past xi jinping’s basement when launched from the right location.
AUKUS. It’s just a money pit.
Cris
March 7, 2025 at 6:34 pm
No time to lose Canada ! React swiftly and order nuclear propelled French subs!
Only they have both the technology and the industrial capacity to deliver nuc propelled subs within a reasonable timeframe.
(Too bad for Australia if they changed their bets and opted for the wrong horse..)
Canada can exact some independence, and revenge, from the US with what would be an astute decision
James
March 8, 2025 at 7:32 am
Unfortunately when Australia was purchasing subs from France, Australia asked about purchasing nuclear subs, but France told Australia “No.”
Jim
March 7, 2025 at 10:08 pm
The United States has need of the same type of submarine as to be delivered to Australia.
We’re behind schedule for our own needs.
The United States should let Australia contract with France for the diesel-electric submarines with premium for speedy delivery and number of units.
Should the U. S. catch up to our own needs, we’d be open to selling nuclear submarines to Australia.
But, in the meantime, Australia’s submarine gap will grow.
We want Australia to be able to defend her waters.
Diesel-electric is the stop-gap Australia needs for her current military preparedness.
James
March 8, 2025 at 7:37 am
>”Every Virginia-class submarine delivered to Australia is one less U.S. naval asset available to deter or defeat China.”
Is it?
Or will Australia naval assets be sailing with the US against China?