There is no single Kurdish nation; there are separate Kurdish tribes, Armenian expert in Kurdish studies said.

As Garnik Asatryan told a press conference, Turkish and Iraqi Kurds differ from one another due to difference in languages, thus making the unification of Kurds quite a problematic issue.

“The U.S. has invested significant resources in Iraqi Kurdistan. Turkey, acknowledging it, continues implementation of ousting Kurdish movement leaders from Turkey to Iraq, where tensions between the Iraqi and Turkish Kurds escalate,” the expert said, adding that the Kurdish population in Iraq totals about 4 mln., with 3-3,5 Kurds residing in Iran, 2 mln. in Syria and about 8-9 in Turkey.