Most immigrants came to Slovenia from other republics of former Yugoslavia (at that time this was considered as internal migration), so many of them acquired Slovenian citizenship after Slovenia won independence.
Priselitve ljudi iz drugih republik nekdanje Jugoslavije v Slovenijo so se takrat, v skupni državi, štele za notranje selitve, zato so številni priseljenci s teh območij zlahka pridobili državljanstvo Slovenije.