BTW, do you know which countries made easy and quick overthrow of Taleban possible? Do you know how were the sponsors of Northern Alliance?
Yes, and I know where you are going with this. There were irregular Iranian forces in Afghanistan in the campaign against the Taliban and American Special Operations Forces have made it clear, to those paying attention, that while Iranian forces were fighting the Taliban in theater, they were not operating in a way that assisted Americans or Afghanis. Organizing tribes to cut the throats of rival tribes does not lead to political stability, only increased mayhem. The situation there is indicative of a larger Afghan-Iran relationship. The Iranians have never been on good terms with their Afghani neighbors. Afghanis in Iran are treated like second class citizens and the Iranian government was all too happy to deport Afghani refugees after the Taliban fell. Not surprisingly, Afghan refugees were all too happy to leave.
To those familiar with his political and military megalomania, Ahmadinejad wishes his Afghani neighbors were wiped of the map almost as much as his public enemy number one, Israel. Obviously, saying so publicly would not foster the kind of Muslim solidarity he and the Valeyat need to dominate the region.