Worldbuilding-Adventure Friendly Cold War/Alternate Earth

[Sciencezam]

So! I'm running a game set in a sort of alternate earth, with the players being russian soldiers, and I'd like some help getting it a bit more well developed.

The game itself borrows somewhat from the anime Strike Witches-it follows a group of people who are basically flying infantry. They're like what would happen if the Rocketeer was mass-produced. (They don't have access to magic like in the anime, though-the explanation I've been running with is that some people are just THAT AWESOME.)

In terms of technology, there are bits of nazi superscience floating around, though currently they're in the realm of not-fully understood technology. People can maintain and repair them, but not grok how they work.

This is the realm that Nuclear Reactors fall under currently; they are weird, mysterious things that kill people who try to fix them and that produce huge wads of energy. So TL 6-7^, basically.

Aside from the tech, though, I'd like ideas on how the countries and politics of the world would look. Geography I figure is much the same as the real world. I haven't done too much set in stone, but things I have in mind so far are:

-Russia and England are the main communist powers in europe/asia
-What would normally be France is also part of England
-Actual France moved over to south america
-France and America are total bros and teaming up to fight communism
-Nuclear weapons do not exist
-Names of everyone and everything is changed relentlessly; I'm only using the above ones because they make things easier to refer to in the thread.

So, if anyone has ideas, or suggestions on things I should think about, that'd be grand. The whole flying soldiers thing was around during the WWII analogue, so that probably changed stuff around.