"However what I was thinking when reading your posts was that it's a shame that Orthodox and Catholics are still can't find a common ground."
I would say that's rather Poles vs. Russians and Serbs vs. Croats in case of Balkans than Orthodox vs. Catholics in general.
"I would say that's rather Poles vs. Russians and Serbs vs. Croats in case of Balkans than Orthodox vs. Catholics in general."
Apart from that, there was,
4th Crusade and sacking of Constantinople
1054 Schizm and mutual excommunication between Pope and Orthodox Patriarch.
So there were quite a few nasty conflicts between Orthodox and Catholics apart from Russian-Polish or Serbo-Croat wars. Let's hope that it will never ever happen again.