[CCIP]

Three issues with having this in one scenario:

1) The more units in a scenario, the more performance bogs down. Even simulating a regional war on any realistic scale often pushes fairly strong computers to get really slow. Two or three wars would mean a very laggy game, or a very simplified conflict.
2) The scripting and mission assignments start getting problematic, because you need to separate the areas in the game logic, and you might have trouble doing that. For instance, you might end up in situations where fighters in Korea might decide it's a good idea to try and refuel over the Ukraine...
3) More generally - what would this be simulating? CMANO works on a tactical to operational scale; it simulates the the perspective of, at most, an operational command - it might be an operation in a very big space, but still an operation. For this scenario, it sounds like the strategic level is involved. CMANO is not really well-suited to simulating multi-theater strategy and I don't think any military officer would think that having operational control of multiple theaters at the same time is a good idea.

I'd split these into separate scenarios - they're all good idea on their own!