Repurposing the British Army
Reframing Force Design: A New Mental Model for the British Army
The British Army faces a simple problem. It is trying to do too many things with minimal resources. It must reconcile size, purpose, identity, and ambition. This dilemma might not be new, but it is no longer discretionary. War in Europe has returned. Geography matters again. Mass matters again. Time matters again.
The current design reflects older assumptions; structurally withered from holding on to the models of former mass, rather than yet filling out the full potential of its currents scale. Given the immediate imperatives it is less productive to regret the cuts of the past than it is to make true sense of the numbers it has.
The British Army prizes flexibility and professionalism. These are strengths. But they are not enough. They do not solve the problem of scale. They do not anchor the Army with a clear strategic purpose. The result is a force that is capable in parts but lacks coherence. It risks being present everywhere and decisive nowhere. Critics will challenge this paper by asking the “what about” question. The answers will always be about first principles: a strategic arc of resource alignment, based on the size of the force that actually exists.
What is required is not adjustment, but reframing. The British Army needs a new mental model for force design. This paper proposes three foundations: a geographic baseline in the Nordics; a focus on three master effects in war; and a cadre structure designed to scale.
The Nordics as Baseline
Strategy begins with place. For the United Kingdom, the north matters.
Norway supplies a large share of UK energy[i]. Its security is not peripheral; it is central. The Nordic region more broadly anchors NATO’s northern flank. It is where Russian capability, Arctic access, and alliance integration meet. This is not an abstract concern. It is a practical one. If the UK is serious about defence, it must be serious about the north.
A Nordic baseline gives the Army focus. It places force design in a territorial context. It demands endurance, not rotation. It requires competence in cold weather, dispersed operations, and long lines of communication. It aligns the Army with allies who plan to defend ground, not simply deploy forces.
This alignment would produce two things.
First, a rapid maneuver force. It must be able to move early and reinforce quickly. Speed matters at the outset.
Second, a multi-domain HOLD force. This force must block, defend, and counterstrike across land, sea, and air. It must endure. It must absorb pressure and return it.
It should also support a wider Nordic approach to integrated air and missile defence—a “dome” in practice if not in name. The aim is not to build something separate, but to strengthen what already exists; aligning to the NATO initiatives in the region around TFX and the Arctic Sentry Initiative[ii].
Recent war shows the direction of travel. In Ukraine, effective forces combine dispersion with precision[iii]. They fight across depth. They use technology to connect fires, sensors, and maneuver. The lesson is not novelty. It is adaptation.
A British Army built for the north would adopt the same logic. It would be harder, more resilient, and better integrated.
This does not limit ambition. It grounds it. A force that can fight in the High North can fight elsewhere. The reverse is not always true. The British Expeditionary Force was designed with a purpose and expanded in war. The same principle applies.
UK officials have publicly stated that the country has three years to “be ready for war[iv]”. None have stated where or why that War would take place. However, given the clamor for the Arctic – “the 1 Trillion Ocean[v]” – the strategic nature of the north is undeniable, and worthy of a reframing of UK defence spending from a perceived ‘cost’, to a genuine investment in the interests of the nation.
The Master Effects of Land Power
Land warfare has a constant logic. It is about geography.
War has always been a contest in geography. The best commanders understood this. Hannibal Barca did[vi]. Napoleon Bonaparte did[vii]. They used space, terrain, and movement better than their enemies. They turned position into advantage.
Maneuver is not new. It is not fashionable. It is fundamental. It is the use of geography to concentrate strength against weakness and strike where it matters. From this come three effects:
The Hold. An army must hold ground. This is its core purpose. If it cannot hold, nothing else lasts. Air and maritime power can shape events. They cannot secure them. Holding ground denies the enemy tempo. It denies initiative. It turns action into outcome.
Turning Operations. An army must dislocate its enemy. It must force them off their axis and onto a worse one. This is maneuver in practice. Not movement, but compulsion. A turning force breaks coherence. It prevents the enemy from doing what they planned to do.
Strike and Counterstrike. An army must exploit weakness. It must concentrate force, strike depth, and disrupt rear areas. It must also respond when struck. War is not static. Tempo decides it. The side that acts faster, recovers faster, and strikes again will win.
These effects are simple. They are also demanding. Together they describe war as a contest of tempo, coherence, and exploitation. Force design should follow them. Not the other way around.
Recent Ukrainian experience shows how this can be done. Professional leadership, flexible organization, and technology combined to produce effect. Not perfectly. But effectively enough. The lesson is clear. Structure matters less than what that structure can do.
Cadre and Scale
The hardest problem is scale.
The British Army is not presently resourced to be large in peace. However, it must generate mass in war. The gap between the two should be bridged now. There is only one reliable way to do this – recognize the asymmetry. Mass can be generated quickly. Experience cannot.
A soldier can be trained in months. A leader takes years. A battalion can be filled. It cannot be led without preparation. The implication is straightforward. The British Army in peace must be a cadre for war.
This requires change. People must habitually train one level up. A company commander should be prepared to command a battalion. A battalion commander to command a brigade. This must be routine, not exceptional.
Alongside this, a shadow structure must exist. A wartime Army in outline. Roles assigned in advance. Command relationships understood before crisis. Under this model, brigades in peace become divisions in war. The professional Army is spread across a larger conceptual force. When expansion comes, it does not create structure. It fills it.
This allows mass to be added quickly. Conscripts or reservists provide numbers. The cadre provides direction. The professional Army is not diluted. It is distributed.
This is the point. Combat power can be expanded in people. It cannot be expanded in judgement at the same speed. Design must reflect that.
Former Defence Chiefs have argued for conscription[viii] in the UK and were met with both societal and political challenge for making the point. Political appetite for issues like this is often spring-loaded. Contentious issues such as conscription can flip from debate to law, where the need is visceral and undeniable. The Army doesn’t need to force the law, but it should be prepared for the contingency, should the gravity of the moment demand it.
An Integrated Operational Design: From Baseline to Execution
The value of a new mental model lies in its ability to translate into action. Geographic alignment, master effects, and scalable structure must combine into a coherent operational design.
At its core, this begins with time and warning. A Nordic-aligned Army must respond rapidly to indicators and warnings. A forward maneuver force must deploy at speed to fall in on designated geography and establish an initial defensive posture.
This is not a meeting engagement. It is a deliberate act of occupation. The purpose is to seize key terrain early and deny its use to the adversary. This must be done in full alignment with the territorial defence plans of partner nations, ensuring that UK forces reinforce and integrate into an existing defensive system. By making this an explicit plan in peace, it also communicates deterrence—demonstrating intent, preparedness, and coherence.
From this entry, the force establishes a multi-echelon defence. This is layered in depth and integrated across domains. Its purpose is to block, hold, and shape the conditions for counteraction. At the forward edge, forces disrupt and delay. In depth, they absorb pressure and maintain coherence.
A layered air defence architecture underpins this system. Land-based systems contribute to a wider Nordic defence of airspace, protecting infrastructure, maneuver forces, and lines of communication.
At the same time, the defence shapes the enemy. Through terrain, obstacles, and fires, it canalizes the adversary onto ground of disadvantage. This enables turning operations and sets conditions for decisive strike.
Behind the forward fight, a second process occurs.
A rear-area framework builds combat power. Professional units provide the structure. Conscripts or reservists are fed into it. The force grows while it fights. This creates temporal depth. The defence strengthens over time rather than degrades.
This is essential. Even fully mobilized, Nordic land forces are smaller than the standing mass available to an adversary in the Leningrad military district. The defence cannot rely on parity. It must rely on time, structure, and design.
Finally, this enables multi-domain warfare in practice. Land forces act as a bastion, linking sensors and effectors to defend air and sea from a grounded system. The land domain becomes the anchor for joint effects.
An Expeditionary Foundation
A focus on the Nordic region does not diminish the British Army’s expeditionary character. It reinforces it.
The professional British Army has always been designed to fight beyond the United Kingdom’s shores. Some of its finest victories have included a predominantly multi-national force design; whether that be at Waterloo[ix], or in Slim’s 14th Army[x]. That is its tradition and its utility. From the British Expeditionary Force to more recent operations, its purpose has been to project force where required, not simply to defend at home.
What changes in this model is not that instinct, but its structure.
A Nordic alignment creates a systems-based approach to expeditionary warfare. It centres on three elements: rapid deployment, integration with allies in territorial defence, and the subsequent build-up of mass. The Army is not designed to deploy in isolation, but to reinforce and enable a wider defensive system from the outset.
This strengthens, rather than constrains, expeditionary capability. A force built to deploy quickly into a demanding environment, integrate immediately with partner nations, and operate within a coherent defensive framework is inherently more adaptable. It is trained to arrive ready, not to learn on arrival.
Regional alignment provides focus. It ensures that training, capability development, and operational planning are grounded in a real and relevant context. But it does not limit employment. The same force—structured for rapid entry, designed to hold, and able to scale—can be applied elsewhere when required.
In this sense, the Nordic baseline is not a boundary. It is a foundation. It is, to use the Army’s own terminology, preparing a force for the war without preventing its fundamental utility to operate within a war.
Conclusion: Time and Obligation
If the threat is real, then the obligation is real. The United Kingdom still has time. Not unlimited time. But enough to act.
Time creates advantage. It allows experience to be built before it is needed. It allows structure to be prepared before it is tested.
The Army should use that time.
A force designed to scale sends a signal. It shows that growth is planned, not improvised. That expansion will be coherent, not chaotic. This strengthens deterrence. It complicates an adversary’s calculations.
At minimum, this approach avoids waste. It ensures that peace is used to prepare for war, not to defer it. At best, it produces a force that is aligned with reality. Grounded in geography. Focused on effect. Built to grow. The choice is simple. Use the time or lose it.
* Nick Moran is the International President of Aurelius, a data infrastructure company. He is a military veteran with twenty years commissioned service in the British Army, serving in the SMU community, NATO, and the Royal Gurkha Rifles. He has written previously on the evolution of strategy for Grey Zone warfare, and on military innovation in an age of AI support to decision making.
Notes:
[i] The United Kingdom receives 70% of its energy supply from Norway. Https://www.equinor.com/news/20250606-uk-gas-sales-agreement
[ii] https://www.nato.int/en/what-we-do/deterrence-and-defence/arctic-security
[iv] Tom Newton Dunn Interview with Al Carns (Minister for Armed Forces) 25 Feb 2026, in “The Times” (London)
[v] https://flow.db.com/topics/trade-finance/the-trillion-dollar-ocean
[vi] Goldworthy, Adrian, “The Fall of Carthage: The Punic Wars 265-146BC” (Revised Edition).
[vii] Chandler, David G, “The Campaigns of Napoleon”, 1996, Simon & Schuster (London).
[ix] Around 70% of Wellington’s Army at Waterloo was non-British. Hamilton-Williams, “Waterloo: New Perspectives – The Great Battle Reappraised”, 1993, Arms and Armour (London).
[x] Around 80% of General Slim’s Army was non-British. Slim, William, “Defeat into Victory”, 1956, Cassell & Co (UK).
Source: https://www.realcleardefense.com/articles/2026/04/02/repurposing_the_british_army_1174228.html