evidence: BELGRADE, Serbia (AP) — Tensions between Serbia and Kosovo flared anew during the past week after Serbs erected barricades on the main roads in the north of Kosovo, a former Serbian province. They were protesting the arrest of a former Kosovo Serb police officer. [...] Kosovo is a mainly ethnic Albanian territory that declared independence from Serbia in 2008. The Serbian government has refused to recognize Kosovo’s statehood and still considers it part of Serbia, even though it has no formal control there. [...] The dispute over Kosovo is centuries-old. Serbia cherishes the region as the heart of its statehood and religion. Numerous medieval Serb Orthodox Christian monasteries are in Kosovo. Serb nationalists view a 1389 battle against Ottoman Turks there as a symbol of its national struggle.