"That's an impressive fabrication, since there is no evidence that the Ansar al-Islam camp was carrying out any operations against the Kurds to "control that area brutally."
And you are very WRONG...as usual.
Ansar agents killed Shawkat Hajji Mushir, a PUK general and member of the ruling council, along with several other people. Ansar has been involved in assassinations for some time, killing a governor of a Kurdish region and narrowly missed killing one of the Kurdistan Regional Government's prime ministers. In February 2001, they killed Franso Hariri, a prominent member of the Kurdistan Democratic Party leadership. While the International Crisis Group has made attempts to downplay the group's significance, calling it a "minor irritant in local Kurdish politics," that's not entirely true, as Ansar was extremely destabilizing to the PUK and to a lesser degree the KDP.
Both the Christian Science Monitor and Human Rights Watch have documented instances of brutality that Ansar has committed on the local Kurdish populations. HRW even interviewed Ansar members in PUK custody who gave credible details about training in AQ camps in Afghanistan. During the Afghanistan War, a document found in an al-Qaeda guest house by the NY Times discussed the creation of an "Iraqi Kurdistan Islamic Brigade" which vowed to "expel those Jews and Christians from Kurdistan and join the way of Jihad, [and] rule every piece of land...with the Islamic Shari'a rule." Below are just a few examples of these stories.
http://hrw.org/backgrounder/mena/ansarbk020503.htm (Human Rights Watch Report)
http://www.frontpagemag.com/Articles/ReadArticle.asp?ID=5571 (Ansar, AQ and Al-Zarqawi)
http://www.csmonitor.com/2002/0315/p01s04-wome.html http://www.back-to-iraq.com/archives/2003/02/spotlight_on_ansar_alislam.php http://www.fas.org/irp/news/1998/11/98110602_nlt.html