Hi all new to game, just wanted to know can I leave the EU with D3 and if not is there a mod?
Regards
The EU isn’t simulated in D3 so no, you can’t leave it… Because, it doesn’t exist.
That could of course be done with a dilemma, with a prerequisite for countries which are already EU-members. It would require new country files.
Or just consider a large generic economic group, like EU, ALCA, Mercosul, Alianza del Pacifico, etc…
No worries I found a mod which allows me to leave EU if playing an EU Country. 
Thanks for replies though.
May you name it or link it here?
EU MOD, Its on Steam Workshop.
Waiting for a Scotland leaving the UK Mod now would be interesting to see what happens.