NATO troops in the Kosovo Force (KFOR) fired tear gas and small arms and some protesters fired back with handguns.
The troops, in armored personnel carriers, were confronted by hundreds of Serbs who pelted them with stones near barricades in the villages of Rudare and Dudin Krs outside the town of Zvecan in a Serb-dominated northern area of Kosovo.
The roadblocks are among the last on major roads yet to be dismantled by KFOR. They were erected as part of a long-running Serb campaign to prevent the government of Albanian-majority independent Kosovo from imposing its rule in the area.
"One KFOR soldier has been wounded, has been evacuated and he is stable," said NATO spokesperson in Kosovo Uwe Nowitzki.
The NATO troops involved included German and American troops.
President George W. Bush didn't repudiate American commitment even though this war was waged by President Clinton. Yet President Obama seems uninterested in defending what we won in Iraq at a far higher cost.