Yes, that instability turned into an all out war in 1991. Just a few years after that war ended, the US Team finally went to Croatia to the 1st World Taekwondo Olympic Qualifier, I was head of team for the USA on that trip.
In Zagreb we walked across the tarmac to new terminal, past the old terminal that had been bombed by the Serbian Air Force. It was still barely standing, burnt and shattered. Then we passed concrete bunkers where inside you could see destroyed fighter jets still sitting there.
The jet that was to fly us from Zagreb to the Adriatic shore town of Pula broke down, so I called the Croatian Taekwondo Federation for assistance. They sent a tennis pro and a military driver to drive us from Zagreb across the Balkan mountains to Istra on the Adriatic. As we drove though towns West of Zagreb, we could see were some homes had been strafed by heavy machine gun fire, and some had a huge tank shell or RPG hole in the front with no roof or windows. The tennis pro told me that the Serbs would keep the people in the homes at gun point, turn on the gas, go back to the street and fire a shell into the home destroying it and killing everyone inside.
After the 5 hour trip, we arrive on the other side of the Balkans to what looked like paradise, war had not reached Istra. It was vineyards and olive orchards and an azure blue Adriatic sea.
I guess I could add this statement to the value of Kukkiwon certification thread