A dispute over licence plates has reignited long-standing tensions between Serbia and Kosovo. Kosovar drivers have to buy temporary plates while driving through Serbia. When Kosovo reciprocated, Kosovo Serbs blocked two border crossings and set government buildings on fire. Kosovo deployed special police, which triggered Serbia to send tanks and soldiers to its side of the border. NATO peacekeepers have increased patrols in the area. Why has one of Europe's forgotten disputes escalated now? Presenter: Imran Khan Guests: Zarko Korac - Former Serbian Deputy Prime Minister Bodo Weber - Senior Associate, Democratization Policy Council Pieter Cleppe - EU Policy Analyst - Follow us on Twitter: twitter.com/AJEnglish/ - Find us on Facebook: www.facebook.com/aljazeera/ - Check our website: www.aljazeera.com/ #Serbia #Kosovo