Bosnia and Herzegovina
Bosnia and Herzegovina is a dysfunctional state in southeastern Europe.
Bosnia remains the case study for the evils of unchecked nationalism in the "developed world." The assassination of Franz Ferdinand, which triggered World War I, took place in the capital city of Sarajevo. The assassination was purportedly plotted by the Black Hand, a Serbian nationalist movement aiming to unite all Serbs--including the ones living in Bosnia and Herzegovina--under a single flag.
The 1990s were a particularly bad time for the country, as it experienced several years of ethnic-nationalist conflict which led to mass atrocities and the events that led to the world's first criminal conviction for the crime of genocide at Srebrenica.