Turkey and Iraq have signed an anti-terrorism deal targeting Kurdish rebels based in northern Iraq.
Under the agreement, the two countries have vowed to take all necessary measures, including financial and intelligence, to combat the Kurdish PKK militants and other such groups.
They will hold six-monthly meetings to coordinate their work.
The two failed to agree on a plan that would have let Turkish troops chase militants across their shared border.
Turkey has long criticised the Baghdad government and US occupying forces in Iraq for failing to tackle the PKK.
Ankara claims the right under international law to send its troops across the mountainous border in pursuit of rebels, but Iraqi Kurds opposed any concession by Baghdad on this issue.
The separatist Kurdistan Workers' Party (PKK) has allegedly long enjoyed a safe haven in northern Iraq.