Today is St. Vitus Day (Vidovdan), the anniversary of the 1389 Battle of Kosovo and the 1914 Sarajevo tyrannicide, among other things.
Personally, I think more people ought to heed the object lesson that is Austria-Hungary, which used the events of Sarajevo as a pretext for the long-desired war to conquer and crush Serbia - only to self-destruct four years later.
Gavrilo Princip sends his regards.