A banner with the Serbian flag is seen 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)