This afternoon I was told a simple story that illustrates why the hatred and division, fuelled by nationalism, that's all too common in this part of the world need not be an inevitability. We were visiting the parents of some brothers who are attending the youth work we're running in Jajce. Over generous helpings of coffee and cake the conversation ranged around various subjects. Then it turned to the one that can prove so explosive. The father leans forward. “It was ninety-three” he begins, explaining that this was the height of the war between the Croats and the Muslims, at least where he was at the time. “We got married then.” He is Catholic, his wife Muslim. His point was clear, so clear I think it needs no further expounding.