So, in the past, we discussed the arms and equipment of the Imperial Legions, but we never went into their organization in any particular depth, something this post intends to correct.

Now, if you remember the Table of Ranks post, you’ll note that I have used fairly typical Western-type ranks (albeit in somewhat altered structure) to translate the ranks of the Imperial Military Service, Legions included. This is a convenience for the reader who is familiar with these, although in many ways this paints an inaccurate picture of their actual organization.

One should remember, after all, that the Empire’s history never had the Dark Ages, or the medieval era that followed. The implication being that the Imperial Legions draw their tradition, in unbroken descent generation following generation, from the phalanges of Ancyr and the lockstep legions of ancient Selenaria, themselves born of a time when the hot new military technology was very early steel – and this imprint still lies heavy upon them.

And one of the places that this is visible is in their organization and associated positions.

(These being the titles associated with command or various other positions within a unit, separate from the rank held by whoever occupies it. As I note below, there is a loose association between the one and the other, but the Imperial Military Service has gone all-in on matrix management and does not believe in up-or-out; in a world in which lives are so very, very long, they don’t want to lose talent to such policies over time; or, indeed, by promoting people from positions in which they are exceptionally good into positions in which they are less talented. So while it is by no means usual to find legionaries whose rank is disproportionate to their position, it’s by no means unknown.)

And so, in the absence – ah, time to spend on conlanging, where art thou? – of a full and appropriate set of Eldraeic terminology, pray pardon my shameless appropriation and distortion of a variety of Greek and Roman terms in the below descriptions. (Also the use of the term armiger, “one who bears arms” in its non-heraldic sense, to describe those legionaries one of whose primary functions is fighting personally.)

So, to begin at the beginning, with the smallest of units:

Fist

The smallest, most fundamental division of the legions, the fist is a fireteam of four legionaries (E-3, outside training legions or first-tour replacements), one of whom (the monitor, usually an E-4/Corporal) is in tactical command, and a second of whom carries an additional heavy weapon.

(Well, except in armor legions. There, the fist is generally representative of a single tank crew, etc.)

Lochos (File)

The next division up, the lochos (or file, since the original lochos was based on one file of soldiers in the Ancyran phalanx or the Selenarian legions) consists of three fists, plus a lochagos (file leader; usually an E-6/Master Sergeant) and ouragos (file closer; usually an E-5/Sergeant) as commander and second-in-command, respectively, for a total of fourteen armigers.

In light infantry legions, each lochos is assigned a pair of V40 Ralihú IFVs (accommodate 8 each) as transports, the lochagos commanding one and the ouragos the other.

The lochos can be considered the approximate equivalent of the modern squad. In more classical comparisons, one might analogize the lochos with the Roman contubernium, the tent-group; the lochos is a logistical unit inasmuch as its members are quartered together, eat together¹, share various common appurtenances, etc.

Triarchy (informal)

Next up the hierarchy we come to the triarchy – which is not a formally constituted unit but rather one occasionally broken out for convenience – and consists of three lochoi assigned together; 42 armigers. The commander of a triarchy, although sometimes referred to as the triarch, is simply the lochagos with seniority. (On the rare occasions that a triarchy is seen operating independently – see note under century – higher command strata may find an O-2/Ensign from somewhere to give it policy direction.)

It can be considered the approximate equivalent of the modern platoon – in size, at least.

Century

Next in formal units, the century; six lochoi together, commanded by a centurion (O-4/O-3/O-2 Lieutenant/Sublieutenant/Ensign, usually depending on the seniority of the century within its legion) and an optio (E-7/Gunnery Sergeant); 86 armigers total. The century is usually the smallest unit to operate independently (for short periods; any long-term independent operations will be assigned a full cohort). A legion contains 162 centuries (from three alae / nine merarchies / twenty-seven cohorts).

The century is the first of the “bannered units”; these being the century, the cohort, and the legion entire. When colors are carried², the symbolism for each century and its attached battle-honors are of course unique, but the background pattern and combination of colors is standardized, such that every legion’s, for example, 43^rd century will use the same base banner as every other legion’s.

The century also has staff positions (auxiliaries) outside the directly armigerous personnel. In auxiliaries, a typical century will include a signifer (the bearer of the colors and communications specialist), a quartermaster, two forward observer/recon specialists, two armorers, two field medics, and the field kitchen.

In addition, there is a fire-support asset attached to each century; for an infantry legion, this is usually a Saber coilgun-walker or something similar; and it is at the century level that the G5-TT Corveé tactical transports and their crews (one per two lochoi), or equivalent, are attached.

The century can be considered the approximate equivalent of a modern company.

Dicentury (informal)

Back to non-formal units, the dicentury, which is exactly what it says on the tin; a pair of centuries operating together (i.e. 172 armigers), commanded by the senior centurion of the pair.

Cohort

On we go with the cohort; six centuries, for a fighting strength of 516, commanded by a machegos, or “Battlemaster” in the vernacular (O-4/Lieutenant or O-5/Major³). The cohort is the unit most commonly used for independent operations.

As the second of the bannered units, the cohort includes an aquilifer to carry its colors⁴ (and the golden eagle atop them) as well as serve as a communications specialist among its auxiliaries, which include at this point a full embedded logistics and medical staff, an adjutant for the machegos, the master of the camp, an intelligence staff, and the padre, among others.

(The cohort’s padre is not counted among the armigerous on the technicality that his command structure answers first to his deity, and only afterwards to the machegos⁵. Regardless, when the cohort meets the enemy, the padre is usually to be found in the van.)

In addition, there’s a heavy fire-support asset attached to each cohort. The type varies by legion, but a light infantry legion might use the HV-12 Stormfall missile tank or the HVC-14h Thunderbolt drone tank, in the role.

The cohort can be considered the approximate equivalent of the modern battalion.

Merarchy

Up to the next level, the merarchy; three cohorts together, for a total fighting strength of 1,548, commanded by a merarch (O-6/Colonel or O-7/Brigadier). It’s primarily a tactical and administrative division rather than one that has a large staff attached to it. What it does have attached to it, though, is the lighter half of the legion’s organic air support, in the form of one wing of G12-BU Falcon tilt-rotors⁶ attached to each merarchy.

Can be considered the approximate equivalent of the regiment – in size. Where the “regimental system” is concerned, however, that’s the legion.

Ala

Next, the ala, or wing; three merarchies together, for a total fighting strength of 4,664, commanded by an alearch (an O-7/Brigadier or O-8/General of the Wing). Much like the cohort, it has a full attached staff, appropriate to its place in the hierarchy (although it is not a bannered unit).

Also attached to the ala is the legion’s heavy air support; a wing of G7-BU Sunhawk heavy ground-attack aircraft each. Combat support units of various kinds which the legion has permanently acquired over its history and temporarily attached subunits tend to also be glued on here, at the ala level.

It can be considered the approximate equivalent of the modern brigade.

Legion

And finally, the legion itself; three wings together, for a total fighting strength of 13,932⁷, commanded by a strategos, a post occupied by an O-9/General of the Legion. Also includes the strategos‘s command staff (including the draconifer, who carries the legionary standard, a crystal-and-gold replica of the dragons framing the Dragon Throne, and is in charge of legionary communications) and its support units.

The legion is, of course, the highest of the permanently established units of the Imperial Military service. It can be considered the approximate equivalent of the modern division.

And On…

The legion is, of course, not the largest possible military command; it’s merely the largest formally and permanently organized unit. When needed for a war, legions can be grouped together into field forces, which can be grouped into armies, which in turn are attached to fleets up in the airy heights of the Admiralty where grades O-10 through O-14 (various kinds of Marshal) roam, ultimately under the overall theater command of a Warmain (polemarch) answering to the First Lord of the Admiralty.

But that’s another story…

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1. Ride together, die together… bad boys for life.
2. On the modern battlefield, per-century banners are generally not carried; however, the colors and symbols are still used in identifying v-tags.
3. Note that there is no rank of Captain in the Imperial ground forces.
4. The eagles, on the other hand, are borne into battle, usually with the headquarters section. It may not be practical, but there are such things as standards, y’know? Standards about standards, even.
5. General opinion within the Legions, on the other hand, is that the strategos is somewhat senior to god.
6. You can think of these as, simplistically, filling the “attack helicopter” role.
7. Despite variations in the numbers of auxiliary staff attached, logisticians usually budget 18,000 personnel for transporting a full legion, in the comfortable assurance that they won’t need all of ’em for people.