To be honest though, your only boundary is your imagination... there's no rule that any if it has to be realistic.
Agree with this whole heartily.
The post WW1 break up of the Russia Empire and the Ottoman Empire, Warlord China even the Washington Navel Treaty have all provided a fertile plane of existence for our gaming for over a decade now.
In fact its been 192? for over 12 years ?
The what ifs of history are the life blood of campaigns and wargames. More ideas are always welcome