PKK is a terrorist organization. The PKK is listed as a terrorist organization internationally by numerous countries, including the members of the European Union and others such as United States, Canada and Australia. European Union also designated PKK as a terrorist entity in 2004. North Atlantic Treaty Organisation (NATO) also refers to PKK as a terrorist entity.

Since its foundation in 1984 more than 40 thousand people lost their lives because of PKK terrorism. PKK's ideology is founded on revolutionary Marxism-Leninism and separatist ethno-nationalism. PKK wants to suppress the diversity of Türkiye, prevent participation and integration of Türkiye’s citizens of Kurdish origin and intimidate the people in the region. PKK’s primary targets include police, military, economic, and social assets in Türkiye. PKK also attacks on civilians and diplomatic and consular facilities. PKK is also involved in extortion, arms smuggling, and drug trafficking.

Türkiye's tourism industry, economic infrastructure, educational Institutions, teachers, hospitals, public and private enterprises particularly in southeast Türkiye have been the main targets of PKK terrorists. It uses a wide range of method to carry out acts of terror ranging from attacking infrastructure, various facilities, schools and ambulances, kidnapping nurses, customs officials to using cyanide to poison drinking water supplies; and engaging in unconventional tactics, assassination to drive-by shootings, executing uncooperative civilians, ambushes, kidnapping etc.

Until 1998 PKK found a safe haven in Syria. Then its leader Abdullah Öcalan had to flee the country only to be captured several months later. He is now serving life sentence in a prison in Türkiye.

Following the power vacuum in the north of Iraq after the Gulf War, PKK established camps in various points around the Qandil Mountain where they receive training and infiltrate to Türkiye to carry out attacks.

PKK’s funding is based on variety of sources. In a number of European countries there are ongoing investigations and court cases related to financing of PKK terrorism. In a major European country, the number of court files related to PKK related illegal activities exceeded five thousands.

PKK is also into organized crime, illegal human smuggling and drug trafficking. On 14 October 2009, the U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC) targeted the senior leadership of the PKK, designating Murat Karayılan, the head of the PKK, and high-ranking members Ali Riza Altun and Zübeyir Aydar as significant foreign narcotics traffickers. On 20 April 2011, the U.S. Department of the Treasury announced the designation of PKK founders Cemil Bayık and Duran Kalkan and other high-ranking members as Specially Designated Narcotics Traffickers (SDNT) pursuant to the Foreign Narcotics Kingpin Designation Act.

PKK subsidiaries and offshoots exploit the democratic rights and freedoms in Europe. In certain countries, there are continuing major investigations against PKK financing and other unlawful acts by PKK affiliated entities and individuals. In some others there are ongoing court cases related to PKK activities. As stated in TESAT reports, in addition to collection of money from private persons and firms there are cases that revenues are also obtained from criminal organizations. PKK also continues its systematic recruitment activities of young persons living in European countries and trains them in various camps . It also forges identity documents.

PKK has also offshoots and affilates in Iran, Syria and Iraq. KCK, headed by imprisoned Öcalan, is the same organization with PKK. “KCK” is “PJAK” in IRAN, “Tawgari Azadi” in Iraq and PYD/YPG in Syria.

PYD/YPG’s affiliation with PKK is clear. PYD/YPG was set up under the control of PKK terrorist organization in 2003. They share the same leadership cadres, organizational structure, strategies and tactics, military structure, propaganda tools, financial resources and training camps.