Local Serbs attend a protest in the village of Zupce near the town of Zubin Potok September 28, 2011. NATO peacekeepers in Kosovo (KFOR) brought in more troops to a contested border crossing in Kosovo’s ethnic Serb north on Wednesday, a day after a clash that left more than a dozen soldiers and civilians hurt. REUTERS/Marko Djurica (KOSOVO – Tags: CIVIL UNREST POLITICS)