Recently, the mainstream media has reported that Turkish resolve towards confronting Kurdish rebels in Iraq has significantly increased after members of a US Congressional subcommittee passed a resolution condemning Turkey for taking part in the Armenian genocide of 1915. The Turkish Parliament has authorized the use of military force agaist Kurdish rebels inside of Iraq, and the US White House has been portrayed as being left with limited recourse due to loyalties to both Turkey and the Kurds.
It's been reported by Seymour Hersh that the US and Israel are supporting not only the PKK (the terrorist organization, not the Kurdish poilitcal leadership, who also receives US support), but PEJAK as well. PEJAK is the Iranian branch of Kurdish resistance.
So here is the surface level situation for the US White House:
The White House cannot afford to lose logistics operations based in Turkey and hope to maintain security in area's of Iraq that are strategic with regards to the economic interests of those who commissioned the Iraq war.
The White House cannot afford to fracture NATO at a time when they're trying to sell the world on Iranian nukes, just as they sold them on Iraqi WMD's in 2003.
The White House cannot afford to create a rift between the White House and the Iraqi Kurds, whose northern region of Iraq is strategic in both geographic and geologic terms.
And the White House cannot afford to appear impotent in a sitution that was clearly forseeable yet appears untenable at surface level.
Below the surface, however, there is another story. The Turks and many other intelligence agencies are aware of US support for the PKK. Yet meanwhile, 70% of US air cargo destined for Iraq continues to pass through Turkey. Therefore, it's clear that as a matter of policy the Turks have decided to turn a blind eye to this situation.
The implication of this is that the PKK is funded to conduct operations which will thereby justify a Turkish military response. The current tiff between the US and Turkey was planned in order to make the US appear impotent to protect the Kurds, while the Turks clean house.
Why would they do that? The answer is simple.
Take a quick peek at the US Trade Representative's website for MEFTA - the Middle East Free Trade Area. http://www.ustr.gov/Trade_Agreements/Regional/MEFTA/Section_Index.html
It's an effort by the White House to unite the entire Middle East into a free trade zone like NAFTA, ASEAN, or the EC (prior to formation of the EU).
Then look at a map of the Middle East and see where Turkey resides. FYI - there is a significant Kurdish presence in Syria as well. http://www.lib.utexas.edu/maps/middle_east_and_asia/middle_east98.jpg
Turkey is the only land conduit between Europe and the Middle East. As long as there is a threat of Kurdish rebellion, the trade route between the EU and MEFTA will be compromised.
Therefore, the decision has been made - quite possibly at the 2007 Bilderberg meeting which took place this year in Istanbul, Turkey - to eliminate the Kurds as a politically viable entity. US funded activities of the PKK will be presented by the global media as justification for Turkish activity.