Ignoring the massive cost, legal hurdles, and the opinion of the residents/government/outside powers, if you could magically grant independence to certain territories or form new bigger nations from existing ones with no repercussions to yourself, what new countries would you create?
Please treat this as a non-serious post, let’s not get into a massive political debate, those never end well.
I’d give northern Croatia to Slovenia and I’d make Istria it’s own country and same for city of Split except it would be walled off from the rest of the country.
Why? Northern Croatian sounds like Slovenian to me, Istrians are too Italian for me but for historical reasons I would not give it to Italy, and I absolutely hate Split.
I’d also give Kosovo to Hungary just because.