05/20/2019 (Mon) 18:22:39
You mean after WWI? Because what I refered to as "big powers" were all the powers during the past thousand years (among them, Hungary).
Several factors came to play.
The "Wilsonic" idea of self-determination, that every nation deserves it's own country was a popular one.
The great powers didn't want a local power close to the previous regime (Habsburgs) to have influence in the region, they were very jumpy the old dynasty will come back (it shows even later after both Austrians kicked them out and we thwarted two restauriation attempts). They wanted to create an Entente friendly counterbalance against Germany in the hood but without empowering one player.
The rise of communism also caused lots of pants to be shat thoroughly, this new counterbalance also meant to be as an insulation layer.
All these small nations who demanded freedom, relevance came in handy. They also demanded land, all from Hungary, so they got from Hungary. The decisionmakers didn't care the demands were unreasonable, they didn't knew the situation, they lacked information, especially accurate information. And false information were supplied by these little countries readily.
Then communist seized the power on the Hungary and this pretty much closed the gate behind us. Even after it was gone and our diplomats got out to France it didn't matter what they said, they weren't there to present their arguments, they were there to sign the dictate.
Hungary was punished for the war and communism.