Really? Honestly? Do the Munich Olympics mean anything to you? ETA attacks in Spain, and the IRA. It's so simple to think that terrorist attacks are a modern thing. Not that this is down to a terror attack.
Yugoslavia was a big country consisting of several countries such as —Slovenia, Croatia, Bosnia and Herzegovina, the Republic of Macedonia, Montenegro and Serbia.
Is there any particular reason you chose Bosnia?
Rightly or wrongly by allowing the attack to be labelled terrorist, will encourage bigotry, because the general public will automatically link it to terrorist groups.