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German post-WW2 literature written by German WW2 veteran officers* concluded that the optimum for a mechanised force would be a 1:1 ratio between tank and infantry battalions, with tank battalions being square designs (four tank companies) and infantry battalions being triangular (three infantry companies + maybe a heavy weapons company).
I'll use this as basic recipe to sketch a possible super-compact yet powerful-enough brigade for exploitation (incl. raid), delaying action and counterattack roles - a small tank brigade. Americans might call it a Cavalry Brigade.
So far the table of organisation is:
HQ unit (~60 personnel including signallers and attached military police, divided into administrative component on soft wheeled vehicles and command element in action with protected wheeled offroad vehicles)
Tank Battalion (four AFV companies and a support company including tracked protected recovery and bridgelaying vehicles)
Infantry Battalion (three infantry companies and a support company)
I will assume that most of the breakthrough effort would be done by other forces, thus the brigade would have but a small obstacle-breaching ability. It does face logistical challenges in action, as it would be de facto cut off during a raid.
This adds a
Support Battalion (medical 'patch up' lorries, heavy dedicated tanker lorries, munitions carrier lorries, electronic warfare, sensors, few engineers, 'first aid' for vehicles with wreckers that have a powerful crane & spare parts)
I do not assume that a full-size vehicle repair workshop should be organic. It would be left behind during a tank raid mission anyway, so it can be left at divisional or corps level.
There's an interesting detail that is not commonly used: The munitions carriers of the Support Bn should have a dual role; they should be usable as personnel carriers after the munitions were withdrawn, complete with fresh air, toilet, windows, heating, folding benches and fresh water supply. It's important that this cargo/passenger compartment is lockable from outside (without a key), for the passengers might be prisoners of war.
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AFV with Cockerill XC-8 turret (105 mm version, 42° max. elevation)
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The structure does so far show armour and infantry, where's the third component of the classic combined arms triad, the artillery (indirect fires including mortars)? That's in those battalions as well. The support company of the Infantry Bn can easily have a couple mortars (as German Panzergrenadier battalions had for decades) and the tanks used in the Tank Bn can be dual role tanks; tank turrets with 42° maximum elevation can be used for indirect fires out to more than 15 km distance if the fire control, position- and northfinding and the munition suit this role. The high explosive (HE) cartridges can be semi-fixed; the shell can be removed from the case, so the quantity of propellant modules in the case can be changed. This allows different muzzle velocities including low muzzle velocities needed for arched trajectories. An alternative would be to use drag rings as often used with rockets of multiple rocket launchers to reduce the usually awfully long minimum range of multiple rocket launchers. A drag ring attachment (or a trajectory correcting fuze with deployable drag elements) would not bend the trajectory as much as a minimised propellant strength would do, but it might offer a variable trajectory with a fixed cartridge.
This allows for fires similar to howitzers; the tank gun becomes a tank gun-howitzer. The armour companies don't stick together, so there's always at least one company with nominally 9...12 tank gun-howitzers in position to assist another with indirect HE fires. An infantry fighting vehicle as base vehicle would feature a front engine and a rear door for easy munitions resupply (ready munitions only in the turret bustle for safety reasons). This means the indirect fires could be done with a continuous munitions supply from outside. One munitions supply vehicle could simultaneously supply three tanks via slides with HE cartridges. Thus it makes sense to have tank platoons of three tanks each in this structure. The fourth vehicle of the platoon would be the well-protected tracked support vehicle with HE munitions, three slides, a recovery winch, a full-width mine plough (suitable for clearing a path from most mine types for other vehicles or helping to fixate the vehicle during winch use), a 360° machinegun and a (tethered) observation drone system (thus a crew of two or three if no tank crewmember helps with the munitions transfers).
A few mortars in the Support Coy of the Infantry Bn would permit high angle fires at very short minimum distances, and would be very suitable for (IR) illumination, HE, incendiary and (multispectral) smoke fires.
Small
side remark; modern continuous band tracks make the vehicle much less noisy,
enabling more surprise effects and reducing crew fatigue that's caused by noise and
vibrations.
Air defence; high elevation tank guns can take down easy exposed targets (drones & helicopters) with HE shells and electronic time fusing (also great to engage troops in visible trenches). Other air defences would be remotely controlled weapon stations with machineguns and ManPADS.
This begs the question of air search (alerting) radars; rotating track&search on-the-move radars should do the trick. This radar should be mounted on an elevating mast for stationary operation from behind a building. Even a raiding force is standing more than moving, after all.
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Czech Snezka artillery / ground surveillance radar system
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The very same radar could be used to detect vehicle movements on the ground and artillery shell splashes (at least with point detonation or delay fuse settings). It might also be used for select radio frequency jamming missions within its own radar band. There may also be air threat data by air force assets (such as AWACS) be downloaded via air force radio datalinks.
Radars alone don't suffice as electronic warfare components. More wideband receivers (direction finders) can be of great use to locate radiating opposing forces. Directional RF jammers against drones are inevitable for the period of transition till drone are autonomous. Tanks, infantry sections and other small units may have such jammers. Radio frequency direction finding vehicles would be with the Support Battalion to triangulate threats and inform a few assault-supporting jammers that add to confusion of opposing forces in contact by briefly jamming their radio communications. These jammers should be active on the move, as they may easily be triangulated and thus become subjected to fires.
Anti-tank work would be done by the tanks (direct and rarely indirect fires), by fibre-optic guided missiles/loitering munitions (in Infantry Bn Support Coy), by infantry (dimensioned against weaker protection than MBT level to limit the burden) and in worst case by 'all arms' anti-tank work (by the support troops with unguided portable AT weapons and munitions).
The
size of such a force could be kept small for maximum agility and a
humanly doable leadership challenge in action. I suppose the whole
formation could stay smaller than 1,500 troops** with more than four personnel per vehicle***, particularly if one mostly avoids low and medium capacity vehicles (less than 10
tons of payload, save for a few cars available to military police as well as two per Bde staff, Bn staff and Coy leadership each).
The mobility should be two-tiered; combat vehicles (including APCs for infantry of at least two companies) and their immediate support vehicles (including the mortar carriers) should be very offroad-capable, all others should be offroad-capable enough for bad unpaved roads, for driving around a cratered road and deep wading up to 120 cm depth.
All vehicles that join an exploitation mission / a raid should at least have basic protection (vertical armour protecting against PKM steel core bullets at 100 m and equivalent fragmentation protection) and pneumatic tyres are unacceptable in my opinion. Airless tires and continuous composite bandtracks would be my choice.
A mostly unsolved challenge of this and real world TO&Es is the evacuation of wounded troops, wounded prisoners and civilians during a raid. Airlift (usually by helicopter) may be much too dangerous even at night and movement by ground much too dangerous when the formation is raiding or racing ahead as part of a pincer movement. These protected persons could not be cared for very well by the formation, especially the badly wounded would suffer. Emergency surgeries ('patching up'), painkillers, disinfection, bandaging, infusions, food&drinks and shelter from weather would be possible and not much more.
Another
restriction is that this structure would not offer much in terms of
civil-military relationship specialists or military intelligence processing
capacity.
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This TO&E sketch keeps such a (small) brigade agile, and exploits a much-increased versatility of the tank component.
This force has much more tanks available than a Russian BTG of about half its size had; 36...48 tanks rather than typically 10...12. The Russian BTG proved to be too light on tanks for manoeuvre warfare, as its BMPs were too poorly protected and equipped for much aggressive action. A mere dozen combat vehicles able to shrug off at least some ATGM hits was not enough for locally overwhelming presence with flanking attack ability. The Russian MBTs (usually some of the few are not operational at any given time) often fought in platoon strength or less.
Their protection should be rated between Russian MBT and Russian BMP IFVs, though it could be better than either if at least an anti-HEAT hard kill active protection system (such as the lightened Iron Fist version) was used. The costs of such an APS can be reduced by using a single rotating radar antenna instead of four fixed ones (2 rpm should be still good enough to intercept with 0.75 sec delay = enough against ATGMs at 150+ to 500+ m depending on type).
Heavy
MBTs would be desirable for pitched battles against well-equipped and
battle-ready opposition, but this formation would primarily fight
against much less battle-ready opposition and should avoid battles
against battle-ready combat troops of battalion size and more.**** It should thus rarely face 125 mm tank guns against which none of its vehicles would be protected (which doesn't mean that they'd lose a fight with a 125 mm tank gun-armed MBT!). The exceptions of intentionally fighting battle-ready combat troops should be the infiltration breakthrough and the exfiltration
breakthrough, in both cases friendly forces would greatly
support the breakthrough including necessary obstacle breaching and
larger calibre artillery fires for the breakthrough fires plan. *****
An arsenal of 36...48 gun-howitzers and 6...8 120 mm mortars offers more indirect fire support than any BTG had, too. You wouldn't have all gun-howitzers in both direct and indirect fire roles at the same time, but that's a manageable restriction, as tanks are supposed to be very rarely in line of sight contact (direct fire role) with opposing forces.
Summary table of organisation:
- HQ Coy
- combat command element
- administrative element
- Tank Bn
- 4 Armour Coys (total 36...48 tank-howitzers and 9...16 support vehicles)
- Support Coy (incl. assault bridgelaying, tracked recovery)
- Infantry Bn
- 3 Infantry Coys (with APCs)
- Support Coy (incl. 6...8 self-propelled mortars and FOGM launchers******)
- Support Bn
- recovery&repair (simple repairs only)
- medical
- EW&radar
- fuel supply
- (V)ShoRAD
- munition supply & POW transport
- few engineers (demolition & some EOD)
- field kitchen and fresh water supply (for all personnel, in trailers, stays in safe areas)
A small army could use this template and make it more versatile by adding an otherwise independent light infantry battalion. Such a reinforced brigade wouldn't be a Tank Bde or 'Cavalry' Bde any more; it would usually be considered to be a Mechanised Infantry Brigade due to the imbalance in favour of infantry. The mindsets would not necessarily fit together well, and the reinforced brigade would be a rather poor line formation due to its short artillery range, but it might make sense in a small army. A very small army of only one such brigade and a light infantry battalion would need to add a vehicle repair workshop (this one may be all trailers) capable of changing tank turrets and tank guns, though.
A German WW2 veteran officer described a Panzerdivision (tank or armoured division) as a weapon more akin to a rapier than a broadsword. It has to be used with care and accuracy rather than expecting success by brute force, and its purpose is the attack. This did in part inspire this sketch of a small (very agile) brigade that's not optimised for tank battles, major breaching operations or independent breakthrough through prepared defences.
S O
defence_and_freedom@gmx.de
*: An example is F.M.v.Senger-Etterlin, "Die Panzergrenadiere", 1961 and another example (for 1:1 ratio) is Eike Middeldorff, "Handbuch der Taktik", 1957.
**: A brigade has about 1,500...5,500 personnel. The Tank Bn would have 250...300 personnel. Infantry Bn would have about 400...500 personnel.
***: A normal ratio in the U.S.Army is four personnel per vehicle, I deviate by using higher capacity vehicles.
****: It could still defeat them through surprise (speed, flank or rear attack, ambush, pincer attacks) or qualitative superiority.
*****: A
reduction of tanks' weight from by more than 1/3 means (from the typical 60+ tons
of Leopard 2A6M, M1A2 Abrams, Challenger series) approx. a reduction of fuel
consumption by more than 1/3, further increased by enabling continuous composite
bandtracks for a total fuel consumption reduction exceeding 1/2.
******: Fibre-optic guided missiles, examples E-FOGM, Polyphem, RALAS. Such missiles are less suitable for cycling over a target area in search of a target than loitering munitions, but the fibre-optic datalink is more trustworthy than a high bandwidth radio datalink.
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