Can militia be built from factories?
Noneshallpass responds NO, "Of course, they do not require a factory, but can be built in any land zone, even in a territory containing a factory.
However, I think that normal restrictions would still apply, even if you have a factory (number per turn up to IPP value, min. 1. Max 1 in captured land zones)."
Bretters opines YES, “Militia CAN take up factory slots- if they are taking up factory slots, they are not bound by the you can build x amount of militia per turn in a given territory. that number is based on placing militia and NOT using a factory to produce the militia.”