The western Balkans have reemerged as a geopolitical fault line. In recent years, as a number of the countries in the region—which comprises Albania, Bosnia and Herzegovina, Croatia, Kosovo, Macedonia, Montenegro, Serbia, and Slovenia—have dealt with corruption and economic stagnation, some of their leaders have reembraced ethnic nationalism, taking advantage of the undigested legacy of the conflicts that roiled the area in the 1990s to deflect popular anger from corruption and economic stagnation.

https://www.foreignaffairs.com/articles/southeastern-europe/2017-07-07/how-fix-western-balkans