In ex-Yugoslavia there is a rather pronounced distinction between citizenship and nationality. In Bosnia and Herzegovina (BH) this distinction is actually enshrined into the constitution. Moreover, in BH all official documents must be translated into 3 constituent languages. As a funny example of this see how cigarette packets look in BH [1]. In all three instances they say exactly the same thing. NOTE: Cyrillic alphabet, as used in Serbia, has an isomorphic relationship to the Croatian latin alphabet (this same latin alphabet is official in the Serbian "language" too, although it is not called Croatian). To get an entertaining idea about how complicated things are in BH see [2] or [3].
[1] https://www.globaltobaccocontrol.org/tpackss/share-pack/pack... [2] https://www.youtube.com/watch?v=KO0rEwwyB0g [3] https://www.youtube.com/watch?v=sCEYDdMue-8