Ultra-nationalism drives the Serbia-Kosovo conflict. The suppression of the ethnic Albanians by the ultra-nationalist Slobodan Milosevic led to the Nato bombing of the then Yugoslavia in the 1990s.
There have been moments since 1994 where our deeply divided nation united across the divisions of the past and presented a united front. The warm welcome to Nelson Mandela across historical divides after his release from prison, was such a moment.