After the little-reported grenade attack on a UN court on Sunday afternoon, it seems that Kosovo’s Serbs aren’t going to accept independence without a fight.

Reuters: U.N. police pulled out from a Kosovo border post that was destroyed on Tuesday by Serbs who vowed never to submit to the authority of Kosovo’s Albanian government and its Western backers.

It was one of two border posts, between Kosovo and Serbia, attacked and set on fire by Kosovo Serbs earlier in the day in the Serb-dominated northwest corner of Kosovo.

Sofia Echo: Serbs also attacked a check point near Zubin Potok. The police officers hid in a tunnel while about 1000 protesters tried to tear it down…

hundreds of Serbs set fire to the temporary passport control premises in Banja.

Of course, with any luck this is just a small-scale bit of initial frustration from local ethnic Serbs and it won’t escalate any further. Fingers crossed, eh?

But considering UN troops so far don’t seem to have clear instructions about what to do (abandoning the border posts of a territory they’re meant to be protecting? What’s all that about?), how long is it going to be before Serbia – or perhaps Russia? – steps in with its own “peacekeeping” troops to “protect” Kosovo’s Serbian minority from the ethnic Albanian majority?