All very true. I remember during the NATO deployment to the former Yugoslavia. One faction IIRC still mentioning a battle that happened in the 14th Century. That they still were "upset" about in the late 20th Century. Like in many places in the Med East, SW Asia, someone needs to show them a current calendar.
Like we see in A'stan and Iraq. Once the former Yugoslavia was no long under the "Iron Fist" of Tito, and to a lesser extent the Russian Communists. The old nations of Yugoslavia went back to old habits and predilections. Which generally meant in may cases killing each other. E.g. because of what happen 600 years or so before.
Another leftover from WWI, with the fall of the Austro-Hungarian Empire. Then the division of much of Eastern Europe and the Mid East. Which didn't suit many in either of these regions.
In this case, the former Yugoslavia, you have 3 different religions, at least 3 languages, at least 3 different alphabets and numerous ethnicities. With varying levels of distain, mistrust, almost tribal relationships, etc. Some were even warring with each other before WWI in that region.
What could possibly go wrong ?
IIRC NATO/UN still has some troops there to "keep the peace" …
