The Soviet Union

[GAGA Extrem]

Vicky2\localisation\newtext.csv, line 98:

RUS_proletarian_dictatorship	Soviet Union	Union Soviétique	Sowjetunion		Unión Soviética									x

The names change with the form of government. That's also the reason why each country has multiple flags.
A communist GB for example is called "The Workers Commonwealth". No events or modifiers are involved to make a communist uprising in russia more likely.

 

[GAGA Extrem]

Another problem is the fact that revolts can be "dissolved" by passing a reform.
I had a situation where half of my country was occupied by reactionaries and the army couldn't cope with the situation anymore. But once I passed trinket healthcare, the rebels went home and the rebellion size was reduced from 300.000 to 25.000 men.
>_>