Speculation aside, the timing is suspicious:
http://www.nytimes.com/2007/10/21/world/europe/21c...
A group of Kurdish fighters moved into Turkey from northern Iraq, the Turkish military said, and attacked Turkish soldiers based near the town of Hakkari, about 25 miles from the border, in three different locations, killing 12 and injuring another 16. Turkish soldiers then struck back, firing from helicopters and from the ground, killing at least 23 militants, according to the military, which provided its account in a statement.
In a statement on a Kurdish website, the militants said they captured eight Turkish soldiers, but the claim could not be substantiated. [i.e., NO SOURCE]
The attack came just four days after Turkey’s parliament voted to give the government of Prime Minister Recep Tayyip Erdogan full authority to send troops into northern Iraq to strike at Kurdish militants who hide there.
At the time, Turkish officials emphasized that they would not immediately apply the authority, and security experts said the resolution would be used mainly as political leverage to press the United States and its Iraqi Kurdish allies to act against the Kurdish militants, the Kurdistan Workers Party, known by its initials, the P.K.K.
But Sunday’s attack was one of the worst in recent memory, and the government, which has been skeptical of an offensive in the past, [SAYS WHO?] will be under intense pressure to act.
(snip)