During WWII Italy has occupied large portions of Croatia. Some parts of occupied teritory were previously part of Yugoslavia. So, during WWII Croats living in those parts became citizens of Italy. Did they also get Italian citizenship? If yes, what happend to it after Italian capitulation?
Thank you!
Yes, they received citizenship if they were permanent legal residents of the territories occupied by Italy.
After the war, individuals there had the option of moving to Italy. If they did, they retained that citizenship; if they remained resident in the territories that became part of Yugoslavia they were assumed to have voluntarily chosen to acquire Yugoslavian citizenship and therefore lost Italian citizenship under Legge 555/1912, articolo 8.
Please note this is a "broad strokes" summary supported only by my personal knowledge of the law; for additional detail on a specific case you would be best off contacting an immigration attorney, preferably one living and practicing in the northeast of Italy, where s/he would have acquired prior experience in such cases.