Not only the citizenship of America can not have someone

And   not  only   the citizenship  of   America   ?
For  a  Bosnian  person ,  to have   only   the American  citizenship  ?
He  can not do  that ?
Hello Katiakatkat,

That person, at the moment, has what nationality ? Bosnian ?

And from my understanding, he wishes to have American nationality ? Is that correct ?

Yes  thank you, he would like go have the citizenship of US

@katiakatkat    And    please   for another person from Greece . Mainly   from   Greece   i   would like  to  know

You have already been given the answer and given links. Please read them.
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