[B]efore we go any further, we need to clarify what we mean by this term “officer”. Militaries, as I have stressed before, recreate their civilian social institutions; since different societies have different institutions, that produces differences in the division of class structure.
One of the key divides that shows up repeatedly is the division between commoners elevated to positions of minor authority and aristocrats in positions of command. Indeed, we have this in our modern armies: this is the distinction between non-commissioned officers (NCOs) which are generally soldiers promoted from the lower ranks and commissioned officers who enter the military typically at the rank of lieutenant (or its equivalent). That system is a hold-over from the origins of modern military structure in Europe’s early-modern gunpowder armies: the commissioned officers (whose commission, to be clear, came from the king) were drawn from the aristocracy and often the nobility, while their non-comissioned subordinates were drawn from the common soldiery who were in turn recruited from the peasantry. Because no peasant could become a knight or noble (under normal circumstances) so too no sergeant could (under normal circumstances) become a lieutenant; the social orders were thus kept separate, civilian mirroring military.
But exactly where that divide occurs and its significance varies wildly. In the modern military structure, a second lieutenant, the lowest commissioned officer, typically commands a platoon of c. 40 soldiers while a sergeant typically leads a squad or section (around 10 soldiers). By contrast in the Roman army, the centurion – a senior NCO like the sergeant promoted from the common soldiers – led a century of 60-80 soldiers; more senior centurions (the primi ordines) commanded an entire cohort (480 soldiers). So the line between NCO and commissioned officer can be drawn in very different places in different societies.
Likewise an important distinction is often made around the emergence of a professional officer class (following on the emphasis made on this point by Samuel P. Huntington in The Soldier and the State (1957)) and the officers who came before which Huntington describes as “amateurs”. This is, I’d argue, a mistaken understanding of the role of military aristocrats in their societies; they were no more amateurs at war than a person born into serfdom is am amateur farmer. Neither the serf nor his military aristocrat overlord is a professional, but neither of them is an amateur either; the categories are not exclusive. Nevertheless there is a difference between truly “amateur” officers (which certainly existed), military aristocrats for whom war is a born-calling, and professional officers.
For this discussion, however, much of this complexity is beside the point. That isn’t to say it is unimportant generally (it is very important generally) but that for this topic here, we can define “officer” very broadly and so avoid having to untangle the particular social context of each military in question. Consequently we’re going to just define officer here as anyone who has command over other combatants, effectively lumping NCOs and commissioned officers (and their ancient equivalents) together. That isn’t because those distinctions are unimportant (they are important!) but because they aren’t quite relevant here, since we are really focused on how command structures enable armies to respond with ability and execute complex plans. It is command, not social status per se that we’re focused on.
Bret Devereaux, “Collections: Total Generalship: Commanding Pre-Modern Armies, Part IIIb: Officers”, A Collection of Unmitigated Pedantry, 2022-06-24.
September 9, 2026
QotD: Subordinate officers in pre-modern armies
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