[nradov]

There are multiple distinct ethnic / cultural / religious groups in Bosnia. Serbians (from Serbia or Kosovo) tend to get along well with Bosnian Serbs, but there can be conflicts on occasion with Bosnian Croats and Bosniaks (Muslims).

As a practical matter within US companies it's not feasible to assign team members based on avoiding those potential conflicts. Nor can we afford to hire independent observers. I can't imagine trying to justify that additional headcount request to Finance and HR, they would laugh me out of the room! Instead employees are expected to act professionally regardless of their personal feelings and if they can't do so then manage them out.