A common critic we hear about an EU wide army is What language are they gonna speak but let’s forget Europe 2024,
Rome had a huge empire over the whole Europe, I may be wrong, but I don’t think that commoner spoke proper Latin in remote province. What happens when they join the legion ? Would the units be split by origin region (Dacian with Dacian, Lugdunumese with Lugdunemese) with only officer speaking latin ? Or would you merge legionaries from different province (So you have Tingitanian, a Lustitanian and a Thracian in the same unit) and give them a crash course in military latin (the way the french foreign legion does? ) Even going as far as Rome, Karl the great empire also spread over half of Europe, and modern European nation used to be way more multi-lingual than they are today, and most likely a random southerner/northerner in Britain, France or Germany couldn’t talk to each other.
So how did ancient armies managed the language question ?
oh, it’s definitely standardized, no doubt. But people are people, and some of them are going to call out as it’s familiar to them, and in some sort of urgent response… you’re not going to get too confused at the German guy reading off grid coordinates as ‘24-Richard Wilhelm Theodor…’ to get to a particular random stretch of the Atlantic. (using the MGRS coordinates. 24RWT)
but most of my point was that’s not an actual language; you’re still going to have to designate some language as the common language- and get enough understanding to at least be functional in that. it seems logical to just pick one… but, uh… well. humans aren’t very logical.