Using US-made attack helicopters. "Turkish Troops Bomb Suspected Rebel Positions in Iraq," from [1] AP:

ANKARA, Turkey — Turkish warplanes and helicopter gunships attacked positions of Kurdish rebels along the rugged Iraqi-Turkish border on Wednesday, the country's official Anatolia news agency reported.

Several F-16 warplanes loaded with bombs took off from an air base in southeastern city of Diyarbakir, private Dogan news agency and local reporters said.

U.S.-made Cobra and Super Cobra attack helicopters chased Kurdish rebels some 3 miles into Iraqi territory on Sunday but returned to their bases in Turkey after a rebel ambush killed 12 soldiers near the border, the official said on condition of anonymity because he was not authorized to speak to the media.