Explanation

PKK stands for Kurdistan workers party

It is a Kurdish militant political organization 

Its headquarters is located in the Qandil Mountains

The Dates of operation was 1978

It is designated as a terrorist organization by

•  Turkey
•  European Union
•  NATO
•  United State
•  Canada
•  Japan
•  Iran
•  Israel
•  Syria
•  Australia
•  United Kingdom
•  New Zealand