Actually bringing in a UN could help... but if you ask me, it won't give you any progress over there.
UN won't be hunting down the fanatics. They are good for the "peacekeeping" missions, but to keep the peace you should have it first.
It's a good thing that US forces took controll over that provinces.
Look at the situation, Poles could send there our folks or some other poor guys from another countries. Because sending there others, would be pretty coward we would most likely had to go there ourselves, but then, our regular army it's not experienced and trained in this kind of street fights, so most likely we'd lost a lot of folks and the situation would get worse over there in the same time.
Then, it's a shame that none of our "special" forces is not supporting US there (or it is, but we don't know it, like heppened before) and some of our regular forces are not a part of the operations. As much as i can understand lack or experience as a reason to move out, i can't see a reason to keep going in a novice mode all the time.
Sanding there our guys and being an officiall supported of the US should also mean that we are taking the responsibility for some part of it and we are not running home like a girls.