Kosovo-Serbia: The background to the sirens in the Balkans – explainer

The recent gunfire, sirens and border closings between the two Balkan countries have raised alarms. Here is an explainer on the region’s complex history.
Sirens sounded for three hours in the town of Mitrovica in northern Kosovo on Sunday, July 31, as Serb protesters blocked roads and shot at local authorities in the Balkan country.