i disagree with your methods of number crunching, i guess. i had 12-13 million people in pre-war territory, and i just assumed that gruzia-nec and east arcon had enough population to hit 20 mil after casualty counts. you yourself mentioned west sunyong alone carrying 2.7 million people at one point. or are all the civilians immediately willing to take up arms valiantly? of course, the 20 million figure isn't valid in my eyes anymore either but that's just because gruzia is a vassal now and not annexed.
Your total population as of this point should probably be 18 million.
furthermore, do you really think that romekate forces would just be mixed in with the militias when the order is sent? it's like step 1 for them to not be mixed in when the annexation announcement is called, and i didn't mention it because it's sort of the baseline of what's implied considering i tried migrating the militia out before. 
if they /are/ mixed in, though, then there was a strictly romekati-eyes-only order to destroy the militia before the annexation announcement was sent. of course, since i disagree with the notion that they were mixed, this is probably voided. unless you insist on giving me the opening attack.
I think this matter would be best discussed over steam.  Lmk when you are available.  My battery in my comp is stuff and I've been turning off Steam a lot to preserve power.
Nono, that was way back in the 20s.  They have since been re-engineered to function properly and continue to function properly.
Map updates will come tomorrow, now that I have some time to spare.