This is just a quick colour map of the various countries in Europe whose inclusion has been discussed and their relative states.
These are currently in the game, the European nations which were originally planned and built for 1944. These are currently under development. These are currently planned. These are currently being discussed by Yuri and I, but are not, at present, planned. These have been discussed at various times but at present have been discarded.
Also, in the interest of being realistic - I will be delighted and surprised if Finland comes to pass in full completion…and I think that 5 sides is already very much pushing the limit for the maximum possible number of factions without one constantly being better than others. We have these problems with 4 sides fairly frequently, and it has taken ages to narrow them down to within a small range of power imbalances at various points of the game on various maps.
Armenian SSR was part of USSR, just as the rest of Republics. So those are just regular Soviet citizens. The only foreign Soviet ally was Mongolia…
That said, there were Polish and Czech units (formed from nationals of those countries who somehow ended up in USSR or even were taken as prisoners from German service) in Soviet service and using Soviet equipment, but not remotely enough to make them a ‘side’.
On the subject of the Commonwealth, eventually I’ll texture variant infantry for the Commonwealth members who will probably make up some squads you order as GBR. Similar solution for black soldiers in the United States contingent.