Nicholas Drummond Profile picture
Jan 13, 2022 26 tweets 13 min read Read on X
ARMY 2025 (Thread)
The Army’s Future Soldier Guide has been described as the most far reaching transformation of the Army in a generation. After more than 12 years of austerity, It's a much needed step in the right direction.
1/25
By way of introduction, there are 4 implicit beliefs that underpin not only the Army’s future structure, but UK defence as a whole. First, as an island nation, Britain is dependent on its Navy and Air Force, and therefore needs to prioritise them above its peacetime Army.
2/25
Second, as a nuclear power, Britain’s ballistic missile submarine fleet is the ultimate guarantor of UK security, but if we don’t maintain our conventional forces at a reasonable level, there is a risk of needing to resort to nuclear weapons far sooner than we might want.
3/25
Third, historically, Britain has tended to deploy forces within an expeditionary context to deter or counter threats at distance before they turn-up on our doorstep. The BEF was a vital element in buying time at the start of both WW1 and WW2.
4/25
Fourth, while the Army needs to be rapidly deployable within Europe or to global trouble spots, it still needs to be able to defend the UK domestically. It has been a long time since we needed to expel invading forces, but it’s always possible we might need to do so again.
5/25
Against this backdrop, the Army must determine how it punches above its weight when bounded by very real resource constraints, at a time when it needs to prove it can live within its means, and reliably deliver expensive and essential equipment programmes.
6/25
The resulting Army 2025 high level strategy divides the force into three principal components:
1. The Allied Rapid Reaction Corps HQ
2. The Field Army
3. Home Command
These elements are supported Joint Command to which the Army contributes helicopters and SF.
7/25
The Allied Rapid Reaction Corps (ARRC) HQ is an independent UK contribution to NATO to provide leadership and structure that would bind a large coalition force together and make it immediately effective should there be a major conflict.
8/25
The Field Army is the UK’s expeditionary element, while Home Command would be responsible for domestic defence and would rally Army Reserve units.
9/25
The Field Army has been reorganised into three divisions, plus a supporting formation, Field Army Troops. Conceptually, this gives the Army a corps structure with Field Army Troops providing an additional array of Combat Support (CS) and Combat Service Support (CSS) assets.
10/25
The basic structure is hard to fault. It sets a minimum requirement for a small peacetime army that is affordable and sustainable, especially when supported by an army reserve that allows it to expand rapidly in a time of national emergency.
11/25
The real test of Army 2025 is not the basic structure, even though this is sound, but the total number and quality of the deployable units within it. When the composition of each division is explored, the plan can be seen for what it is: a foundation on which to build.
12/25
1 (UK) Division is a light division with a light mechanised infantry brigade combat team (BCT), a light role infantry BCT, a Security Force Assistance Brigade and support elements. Only the light mech inf brigade has the CS / CSS assets needed to make it fully deployable.
13/25
1 (UK) Division is ideal for supporting United Nations missions, e.g. deployments to Afghanistan and Mali. With a large number of infantry battalions, it should be able to support a brigade-level deployment for at least two years based on a six-month rotation.
14/25
3 (UK) Division is a peer war fighting force with two deployable armoured BCTs, plus a Deep Strike Recce BCT, suited to countering Russia in Europe. The latter has two Ajax regiments plus deep fires assets, so is more of a supporting artillery brigade than a combat BCT.
15/25
6 (UK) Division is not a proper war fighting division. It supports the 77th Brigade (Information Manoeuvre) plus the Army Special Operations Brigade (Ranger Regiment permanent engagement globally) and is configured for "grey zone" rather than conventional operations.
16/25
Strangely, 16 Air Assault BCT is part of Field Army Troops rather than sitting within one of the primary combat divisions, but is fully deployable with all necessary CS and CSS assets. This provides a very high readiness (VHR) force for Operation Pitting-type deployments.
17/25
In total, the Army 2025 structure yields FOUR deployable brigades. There is no way to sugar coat this, but if a deployable brigade nominally requires 5,000 personnel, we really ought to able to generate more than this, even with an army that has just 72,500 soldiers.
18/25
The other serious issue is the Regular Army's dependency on the Army Reserve (AR) to deploy. The AR should be able to provide additional CS / CSS assets to make more regular brigades deployable, but its real role is to ensure the Army can grow quickly in an emergency.
19/25
So, while the core Army 2025 structure is a great start, it is only a first step. We must now look at every component unit to assess its contribution to the force as a whole. For example, do we really need 4 engineer infrastructure support regiments and 3 EOD regiments?
20/25
We also need to plug the gaping holes. We have 31 Regular Army infantry battalions, but with 4 SFA battalions, 4 Ranger Battalions, and a Para battalion detached to support SF, we effectively have only 22 proper infantry battalions.
21/25
The Future Soldier Guide emphasises the need to fight the Deep Battle over the Close Battle, but we simply aren't investing in sufficient tube, rocket and missile artillery. Nor do we have enough air defence assets.
22/25
We will have to fight the Close Battle whether we like it or not. In any event, we will need forward elements capable of screening our deep fires assets. As good as Boxer is, we still need tracked infantry fighting vehicles, and more than 148 main battle tanks.
23/25
A further reorganisation of the Army will be necessary, but cannot happen before we acquire the additional equipment it needs. Ultimately, France and Italy both manage to generate more brigades than Britain. The UK Army should be able to generate 6 deployable brigades.
24/25
The need to invest further is a direct consequence of not regenerating the Army since before 1990. If Britain can waste £37 billion on a track and trace system that doesn’t work, spending a fraction of that to beef-up the Army is not unreasonable or unaffordable.
25/25

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More from @nicholadrummond

Jul 25, 2025
DEFENDING AGAINST DRONES - A THREAD
The ability of $300 drones to defeat million-dollar armoured vehicles has been a common theme of the war in Ukraine. We are constantly being told that drones are an asymmetric weapon that have fundamentally changed the character and economics of land warfare.
1/18Image
It is no illusion that low-cost drones have democratised air power. As a surveillance tool, they lift the fog of war. As an artillery tool, they enable rapid and accurate fire control. And, as a strike tool, they allow small units to inflict significant casualties on larger attacking forces.
2/18Image
We have seen short-range drones used as mobile minefields with swarms rising-up unexpectedly from nearby fields to stop enemy assaults dead in their tracks. We have seen long-range drones used to strike critical infrastructure, enemy HQs, and airfields located far from the frontline.
3/18Image
Read 18 tweets
May 10, 2025
THREAD ON AIRBORNE FORCES AND VEHICLES
Russia's failed attempt to seize Hostomel airfield in the early stages of its invasion of Ukraine provides confirmation (if any was needed after the lessons of Crete and Arnhem) that airborne assaults against well defended targets can be disastrous. The contemporary use of drones only adds to the risks.Image
This means that future airborne operations will primarily be conducted at battalion and company level for coup de main missions against bridges, airfields, and objectives that need to be physically seized and held by forces on the ground. Think WW2 Pegasus Bridge. Many previous airborne tasks, especially raiding tasks, can now be accomplished using PrSM, loitering missions, or armed drones, so demolition roles will be the exception rather than the norm.Image
Airborne missions at brigade level are likely to be risky, particularly for the large fleet of aircraft and helicopters required to deliver them. Where larger formations are needed, they will be used to occupy locations where there are no or limited enemy forces. In this respect, airborne units will become early entry forces rather than assaulting in contact with the enemy.Image
Read 11 tweets
May 8, 2025
The cancellation of the US Army's M10 Booker has little to do with the quality of the vehicle itself, and more about the lack of supporting infrastructure of Infantry Brigade Combat Teams, which cannot effectively support 40-tonne tracked vehicles. 1/4 Image
In the same way that the British Army's Ajax programme includes six different versions, so that armoured cavalry regiments are self-supporting, the Booker chassis lends itself to a whole range of variants based on the M10 Booker Repair & Recovery variant. 2/4 Image
In case Ajax's issues still aren't fully resolved, migrating each variant to the M10 Booker chassis would be a certain fix for Ajax, Ares, Athena, Argus, Apollo, and Atlas. You'd have to compromise on the original requirements, but you'd have an excellent vehicle. 3/4 Image
Read 4 tweets
Nov 23, 2024
It was right to retire the British Army's Thales Watchkeeper WK450 UAS. It took far too long to bring it into service and by the time it arrived, newer and better systems were available. It was also difficult to operate. The question is what do we replace it with? (1/6) Image
An obvious choice is General Atomics Mojave, which is optimised for STOL operations from austere locations. This has a larger payload, double the range and better ISR sensors. It can also carry up to 16 Hellfire missiles for strike tasks. Crucially, it is harder to jam. (2/6) Image
Mojave, which is a modified version of General Atomics' MQ-1C Gray Eagle UAS, weighs 1½ tonnes and has a reinforced undercarriage. Technically, it compares well to Watchkeeper while also being considerably less expensive to purchase and operate. (3/6) Image
Read 6 tweets
Jun 11, 2023
The @GD_LandSystems M10 Booker is not a derivative of the ASCOD platform, but an all-new design. The hull has well-sloped armour, an 800 hp diesel driveline and @Horstman_Group hydro-pneumatic struts. The 105 mm gun based on the UK ROF L7 and is mounted in an Abrams-based turret. Image
As impressive as the vehicle itself is the acquisition approach. 12 prototypes from two companies were down-selected. These were tested extensively. A winner was chosen and awarded a LRIP contract for 26. Now that all issues are resolved a full production contract can be issued.
At each stage of the process, risk was managed. The onus was on @GD_LandSystems to resolve any issues in order to move the program to the next stage. Brigadier Glenn Dean, who has assumed overall responsibility for MPF deserves credit for doing a fantastic job.
Read 5 tweets
Jun 4, 2023
Over the last 15 months, @LockheedMartin's M270 & HIMARS rocket launchers have performed extremely well, obliterating Russian targets while reducing collateral damage at ranges of 70 km, which is beyond the enemy's capacity to return effective counter-battery fire. ImageImage
Ukraine's success with HIMARS confirms what we already believed, that precision-guided deep fires rockets and missiles enable smaller armies to deliver an effect that belies their size relative to larger, less capable adversaries. Image
Before the Russo-Ukrainian War, the USA had already initiated an upgrade programme to increase GMLRS range from 70 km to 150 km, while the new Precision Strike Missile (PrSM) can hit targets at 499 km, versus the existing ATACMS with a 150 km range. This is a significant upgrade. Image
Read 10 tweets

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