>Most likely both China and Russia will simply butt out.
***
Most likely, when the “civil war” starts ...
1) China will attack Taiwan
2) we send carrier groups
3) Russia invades from the North
4) Cuba invades Florida
5) Mexico/Venezuela invades from Mexico
... etc, etc, etc.
Civil war will INVITE invasion. Russia/China/etc would be fools not to attack at that moment.
They are not fools.
Anyone on FR who postulates that Cuba would invade Florida had best tell us right upfront where Cuba will bury about a million of their own dead.
Cuba would simply cease to exist in that event, and we don’t need any help at all from the Federal Government.
Take that to the bank. - despite what you might have read in the MSM, Cubans are piss poor soldiers.