I’m no expert on Hungarian history, but it seems this topic might be interesting:
1. Did Hungarian Soviet Republic, the one established in 1919, have a potential to last longer than four months?
2. WI Kun decides not to trust the French/Romanians and doesn’t withdraw his troops from Slovakia? Is there even a remote possibility that Hungary might end up with Slovakia annexed or made into a puppet state?
3. Or alternatively WI Romanians do pull back their troops, possibly averting the Hungarian-Romanian War of 1919?
4. Supposing Hungarian Soviet Republic survives for at least few years, how does that change the situation in central Europe?