A Serbian flag flutters in front of the monument of late Serbian Duke Lazar who was killed in the Battle of Kosovo in June 1389, in the northern, Serb-dominated part of Mitrovica, Kosovo, Friday, Sept. 7, 2018. The idea of a "land swap" between Serbia and Kosovo to resolve their long-running dispute once and for all has stirred passions ahead of a new round of talks between former war foes. (AP Photo/Darko Vojinovic)