Quote Originally Posted by Thaatu
The conqueror could force them to be crappy unreliable levies (done in game in three turns), but not true professional soldiers like hoplites, unless he was very politically savvy. Or just enough of a charismatic figure to gain their trust and affection instantly, but that can be represented by mercenaries.
That is a limitation of the game engine: The conquerer can either have Hoplites or he can not. There is no way to represent his popularity within this class of citizens that might hinder (or improve - the former leaders must not have been very popular among this class) his abilty to raise them.

On the other hand: He is the conquerer of that town and can raise an existing local militia force by simply ordering it.

There is no need for him to establish new military institutions, distribute new equipement or hold new training. That would be the case, for example, when the Romans conquer Taras and start to raise, equipe and train Legionars there (i.e. establishing of factional MICs).