30th August 2026
Britain is preparing to spend substantially more on defence. Yet at almost the same time as the Government is announcing increased defence investment, one of the Royal Navy's major amphibious assault ships is being sold to Brazil.
That might seem contradictory.
If Britain is increasing defence spending because the world has become more dangerous, why is the Royal Navy getting rid of ships?
The answer is that something much more fundamental is happening. Britain is not simply rebuilding the Royal Navy it once had. It is trying to create a very different Navy, one in which relatively small numbers of sophisticated crewed warships operate alongside drones, autonomous vessels, long-range weapons and increasingly sophisticated surveillance and artificial intelligence.
The sale of HMS Bulwark, announced by the Ministry of Defence on 28 August 2026, provides a useful window into this transformation. The ship has served the Royal Navy for more than two decades and will now transfer to the Brazilian Navy. Her sister ship, HMS Albion, remains at Devonport awaiting disposal.
At first sight, selling two large amphibious assault ships hardly looks like expansion.
But the Government's argument is that the capability they provided is not simply disappearing. Britain and the Netherlands agreed a £2.4 billion programme in July to develop a new fleet of amphibious transport ships. The British vessels will be built in UK shipyards and are intended to carry troops, vehicles and equipment while operating drones and autonomous systems. Each country is expected to operate four ships.
This is therefore not quite a story about Britain abandoning amphibious warfare.
It is a story about Britain changing the way it intends to conduct it.
And that distinction matters when we hear the Government promising higher defence spending.
The Strategic Defence Review set out the ambition to increase defence spending to 2.5% of GDP by 2027, with an ambition to reach 3% in the next Parliament if economic and fiscal conditions permit. The Government describes this as the largest sustained increase in defence spending since the end of the Cold War.
But more money does not necessarily mean more ships.
It can mean more expensive ships, more missiles, more submarines, more drones, more electronic warfare, more artificial intelligence, more ammunition and more sophisticated communications.
The Government has explicitly called this a "New Hybrid Navy". Its plans include new warships and support ships, transformed aircraft carriers and autonomous vessels operating alongside conventional naval forces.
The Prime Minister has described the future Navy in similar terms, with uncrewed vessels operating above and below the surface alongside Royal Navy frigates and their crews.
There is an obvious logic to this.
The nature of warfare is changing rapidly. Ukraine has demonstrated how drones can be used for reconnaissance and attack at relatively low cost. Ships are increasingly vulnerable to missiles, drones and sophisticated surveillance. A large warship operating alone may no longer be the dominant model it once was.
A frigate accompanied by autonomous surface vessels, underwater drones and aerial drones could potentially see farther, cover a larger area and attack from more directions than the frigate could manage on its own.
In that sense, a Navy with fewer traditional ships could potentially deliver greater military capability.
But there is a danger in assuming that automatically follows.
Britain still needs ships.
A drone cannot perform every task of a frigate. An autonomous vessel cannot necessarily replace the presence of a Royal Navy warship when Britain needs to reassure an ally, protect a merchant fleet, evacuate civilians or patrol an area where political judgement and human decision-making are required.
And that raises the uncomfortable question of how much conventional capacity Britain can afford to lose while the new system is being developed.
The problem with military transformation is that the future capability can look impressive on paper while the old capability disappears immediately.
HMS Bulwark is available to be sold today.
The new amphibious vessels will take years to design, build and enter service.
That creates a transition period.
The same issue exists elsewhere in defence. Replacing an ageing fleet with fewer, more capable platforms may eventually produce a stronger force, but during the transition there can be gaps.
This is particularly important for Britain because the Royal Navy has already gone through decades of reductions following the end of the Cold War.
The Strategic Defence Review itself says that the Government intends to end what it describes as the "hollowing out" of the Armed Forces. Yet ending hollowing-out does not necessarily mean returning to the large fleets of the past. The Government is deliberately choosing a different model.
That makes the headline figure for defence spending rather less informative than it first appears.
If defence spending rises from roughly 2% of GDP to 2.5%, taxpayers might naturally assume that Britain will have 25% more military capability.
It doesn't work like that.
A significant proportion of additional spending will go into areas such as the nuclear deterrent, submarines, missiles, cyber capabilities, munitions, infrastructure and advanced technology.
The Government plans continuous submarine production and says the AUKUS programme could allow the Royal Navy's nuclear-powered attack submarine fleet to grow to as many as 12 boats. It also plans thousands of long-range weapons and major investment in munitions production.
Those are substantial investments, but they don't necessarily translate into a larger surface fleet.
And that is why the question "How much are we spending?" is not enough.
We should also be asking:
"What military capability are we actually buying?"
How many deployable warships will Britain have?
How many can be at sea simultaneously?
How quickly can damaged ships be replaced?
How much ammunition is available?
How many trained sailors are available to crew the fleet?
How much maintenance capacity exists?
And perhaps most importantly, how much of the new technology will actually work reliably in wartime?
These are much harder questions than announcing a percentage of GDP.
There is also an economic dimension.
The Government wants defence spending to become an engine of industrial growth. The new amphibious programme with the Netherlands is intended to support British shipbuilding and skilled employment, while the wider defence programme includes major investment in British munitions and weapons production.
That is potentially good news for Britain.
For decades, defence procurement has often involved expensive equipment being bought from overseas or British industrial capacity being allowed to decline. Rebuilding domestic production could provide greater security as well as economic benefits.
But again there is a trade-off.
Building sophisticated military equipment in Britain is expensive.
Maintaining a skilled workforce, shipyards and specialist supply chains costs money even when there is no war.
That is one reason defence spending has to be considered over decades rather than simply from one annual Budget to the next.
There is another lesson from Ukraine.
A sophisticated weapon can be extremely valuable, but quantity still matters.
A country needs enough missiles, drones, ammunition and replacement equipment to sustain operations. A small number of exceptionally capable platforms can be overwhelmed if an adversary can produce weapons more quickly and cheaply.
Britain's future Navy therefore has to find the right balance between quality and quantity.
Too many cheap ships and the Navy may lack the technology needed to survive a modern battlefield.
Too few highly sophisticated ships and Britain may have excellent individual platforms but insufficient numbers to maintain a global presence.
That is the central challenge behind the Royal Navy's transformation.
So is HMS Bulwark evidence that Britain is cutting defence despite promising to spend more?
Not really.
It is better understood as evidence that Britain is changing what it means by defence capability.
The Government is spending more while deliberately moving away from a traditional model of a Navy dominated by large numbers of conventional crewed platforms.
The new model will be more heavily dependent on technology, autonomous systems, long-range weapons, submarines and integration with allies.
That may ultimately produce a more capable Navy.
But it also creates a new set of risks.
Britain could end up with a technologically formidable force that has too few ships to sustain operations over large areas. It could become dependent on autonomous systems that have not yet been properly tested in a major conflict. It could find that highly sophisticated equipment takes longer and costs more to replace than expected.
And there is the most basic question of all.
Can Britain maintain enough conventional military capacity while it waits for the new system to arrive?
The sale of HMS Bulwark does not answer that question.
Perhaps the Government has got the balance right. Perhaps the future Royal Navy really will be smaller in terms of conventional hulls but considerably more powerful as an integrated force.
But the public deserves to understand that distinction.
Because when ministers say Britain is spending more on defence, it is easy to imagine more soldiers, more aircraft and more ships.
What we are actually getting is something different.
More money is being spent on a different military.
Whether that produces a stronger Britain will depend not simply on how much is spent, but on whether the new technology works, whether there are enough people to operate it, whether British industry can deliver it on time and whether there is enough conventional capacity left to deal with the threats Britain faces today.
The quiet transformation of the Royal Navy is therefore worth watching very closely.
The question is not simply whether Britain will have more ships.
It is whether, when the country needs them, it will have enough of the right capabilities in the right place at the right time.