But why isn't this in EB yet!

[tk-421]

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Conventionally yes. Feel free to point the untranslated ones out, in case they were overlooked.
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Okay, I've made a list of all of the untranlated or partially translated units that I know about. Many of the units are available to a lot of different factions. I've tried to arrange them by region or culture or type of unit.

Numidian Cavalry Placeholder
Numidian Javelinmen
Liby-Phoenician Heavy Infantry
Liby-Phoenician Infantry
Libyan Spearmen
Poeni Citizen Militia
Sacred Band Phalanx
Elite African Pikemen
Elite African Infantry
Carthaginian Citizen Cavalry
Sacred Band Cavalry

Iberian Assault Infantry
Almost all Iberian units have the word "Iberian" (example:Iberian Velites, Iberian Scutarii) in front of them. I don't know if that is the way it is supposed to be or if there is an ancient word for "Iberian".

All elephant units

germanic_infantry_fernharjoz

Aspet Cavalry
Kappadocian Cavalry
Pontic General

Machimoi Cavalry
Kleruchoi Agemata Cavalry

Indo-Greek Hoplite
Indian Longbowmen

Sampal Infantry
Subeshi Archers
Early Yuezhi Nobles

Hellenistic Kataphractoi

Chaeonian Guard

Repeating Ballistas

Maybe the "Galatian" in Galatian Kleruchoi and Kluddolon

Maybe the "Caledonian" in Caledonian Rhyfelwyr

Samnite Spearman
Samnite Heavy Infantry

All fleets (at least for the Romani and Koinon Hellenon) have the word "fleet" in them.

Edit: I was looking throught the EXPORT_DESCR_UNIT.TXT file and I saw that all of the Carthaginian units, Chaeonian Guard, and Kappadocian Cavalry have translated names, they just weren't in the right text file.