The fear has been there since 1992, when the war and the Serbian siege of Sarajevo began.
Nearly 5,000 people are estimated to have died in the town since the Serbian siege began.
It is a tourist and port city that suffered serious damage in a Serbian siege last fall.
While the battle for survival by 400,000 people trapped by the Serbian siege continues, the struggle has been all but lost at the zoo.
A long Serbian siege reduced Vukovar to rubble and killed more than 3,000.
Otherwise, life and death went on as they have for the last 22 months of the Serbian siege.
It was the worst massacre since the Serbian siege of the Bosnian capital began 22 months ago.
That was the case during the Serbian siege of Sarajevo.
All over Sarajevo, the young are again wondering about life out from under the Serbian siege.
They fear that the new authorities will seek revenge for the long Serbian siege of Sarajevo.