Kurdistan Workers' Party

Overview

The Kurdistan Workers' Party, commonly known as the PKK, is an armed organization founded by Abdullah Öcalan in 1978. Its insurgency against Turkey lasted decades, reached into Iraq and Syria, and killed tens of thousands of people. The PKK initially sought an independent Kurdish state across southeastern Turkey, northern Iraq, and parts of Iran and Syria. Its later program emphasized autonomy and Öcalan's concept of democratic confederalism. Turkish security forces were major targets, but the PKK also attacked civilians, Kurdish opponents and villages that rejected its authority. Turkey and the United States designate the PKK a terrorist organization. In May 2025, its leaders announced that it would dissolve and end its armed struggle. That announcement opened a disarmament process; it did not by itself settle the position of its fighters in Iraq or of organizations linked to it elsewhere.^[1][11][14]

The PKK is one organization within a diverse Kurdish population spanning Turkey, Iraq, Iran and Syria. Its history cannot stand for every Kurdish political movement or aspiration. In particular, the Kurdistan Regional Government in Iraq is a separate political institution, and Kurdish demands for cultural expression and political representation do not depend on support for the PKK. Turkey's campaign against the organization has at times also restricted Kurdish language education, political representatives and civic life. Those measures remain distinct from action against PKK attacks.^[11][14]

Founding and ideology

Öcalan organized a Maoist circle in Ankara during the 1970s. In 1978, he left the capital and established the PKK with associates in southeastern Turkey. Marxist-Leninist and Maoist ideas shaped its early organization: it proposed a revolutionary worker-peasant alliance and an independent Kurdish state governed along socialist lines. Its territorial ambition extended beyond Turkey into northern Iraq and parts of Iran and Syria. The organization's political program was therefore tied from the outset to an armed project crossing several state borders.^[1][2]

The PKK also treated other Kurdish organizations as competitors. In its early years it attacked rival leftist groups and peaceful Kurdish political parties, seeking control over political activity in areas where it operated. This violence narrowed space for Kurdish opponents who favored different programs or nonviolent participation. Later changes in the PKK's stated aims, including its move away from an independent-state demand, did not erase that early record or the civilian attacks that followed.^[1][2]

Öcalan remained central to the movement after his imprisonment in 1999. His later writings promoted democratic confederalism, a model of local self-administration that influenced PKK-linked organizations in Syria and Iran. The change in ideology also formed part of the setting for successive ceasefires and negotiations. It did not make all Kurdish self-governing bodies PKK institutions: Iraq's elected Kurdish authorities, Syrian Kurdish factions and Kurdish parliamentary parties in Turkey followed different leadership structures and made different choices about armed action.^[11][12][14]

History

The PKK developed its armed campaign against Turkey while using territory beyond the country's borders for sanctuary, training and movement. Syria provided important backing during the Cold War and through the 1990s. Syrian authorities saw the organization as a means of pressure on Ankara, while the PKK benefited from access to bases outside Turkey. In northern Iraq, its long-standing foothold in the Qandil Mountains became a central base for fighters and leaders. An estimate around the 2003 Iraq war placed 4,000 to 5,000 PKK members in northern Iraq.^[3][8]

The organization also entered Iraq's Kurdish political disputes. It reached an accord with the Patriotic Union of Kurdistan after Öcalan returned to cooperation with Jalal Talabani in 1988. Relations with the Kurdistan Democratic Party were more contentious, eventually producing clashes and disrupting trade between Syrian Kurds and the Kurdistan Regional Government. Iran resupplied the PKK in late 2000 and early 2001 while it fought the Patriotic Union of Kurdistan in northern Iraq. Such episodes show how its alliances shifted with regional conflicts; they do not make those other Kurdish parties branches of the PKK.^[8][14]

Öcalan's imprisonment did not end his influence. From prison, he could issue political instructions: in November 2012, he ordered hundreds of Kurdish prisoners in Turkey to end a hunger strike that had lasted more than two months. Turkey had begun secret talks with the PKK in 2006, continued them until 2011, and opened a public peace process in 2009. By early 2013, the conflict had killed about 40,000 people in Turkey, including 700 in 2012. Negotiations resumed with Öcalan, and two members of the Kurdish Peace and Democracy Party were permitted to visit him.^[4]

On March 21, 2013, Öcalan declared a unilateral ceasefire and called on PKK fighters to withdraw from Turkey into Iraq. The talks did not produce a lasting settlement, and the ceasefire collapsed in 2015 amid renewed fighting. Turkey's July 2015 strikes against PKK forces and its Syrian branch occurred as Ankara was also engaged in the campaign against the Islamic State. Later Turkish operations repeatedly crossed into northern Iraq, where PKK fighters retained mountain bases. Those attacks intensified from 2021 and weakened the organization before the next round of negotiations.^[4][7][14]

The Iraqi Kurdish parties remained important to peace efforts. The Kurdistan Democratic Party maintained relations with Turkey and Washington, sought support for negotiations, and called for the PKK to leave areas beyond Qandil. It also faced the costs of the conflict inside the Kurdistan Region: displacement, damaged local trade, clashes involving Peshmerga forces, and Turkish strikes. The party's invitation to former Turkish prime minister Ahmet Davutoğlu to a forum in Duhok formed part of its renewed engagement with the process.^[14]

Structure and leadership

Öcalan founded the PKK and remained its leading political figure through years of imprisonment on İmralı Island. His authority, however, coexisted with an armed leadership based in Qandil. That distinction mattered during ceasefires: Öcalan could call for withdrawal or disarmament, while implementation depended on commanders and fighters across several countries. By 2025, questions about their future residence, weapons and command structures were central to talks involving Turkey and Iraqi Kurdish authorities.^[4][11][14]

The PKK built a wider network without making every associated organization identical. In Syria, the Democratic Union Party, or PYD, followed Öcalan's leftist ideology and pursued Kurdish self-administration. The People's Defense Units, or YPG, became a major armed force there. PKK leaders based in Qandil exercised deep influence over YPG leadership: commanders seeking advancement faced promotion routes tied to PKK credentials and ideological training under Qandil's control. An account of the YPG's Syrian membership and operations must therefore include both its local role and this leadership relationship.^[6][12]

The YPG became a principal component of the Syrian Democratic Forces, which partnered with the United States against the Islamic State. That partnership helped defeat Islamic State forces and bring former Islamic State territory in northeast Syria under SDF control. PKK ties nevertheless made the American partnership controversial and drove Turkish policy toward the YPG. Turkey designated the YPG a terrorist organization and attacked its positions. In 2020, the SDF agreed to remove non-Syrian PKK cadres to ease Turkish concerns, but the effort collapsed.^[6][7][12]

The PKK's network also extended into Iran. The Kurdistan Free Life Party, or PJAK, emerged as an Iranian Kurdish affiliate around the turn of the century, adopted Öcalan's democratic-confederalist ideology and conducted intermittent armed operations against the Iranian regime from 2004. In Iraq's Sinjar area, the PKK developed links with Yazidi armed units, including the Sinjar Resistance Units, or YBS, and women's units. These formations acquired their own local roles; their status had to be addressed separately from any announcement by the PKK's central leadership.^[10][14]

Funding and sponsors

Syria was the PKK's most consequential historical state sanctuary. Its support allowed the organization to train, organize and sustain operations against Turkey from across the border. The PKK subsequently relied heavily on northern Iraq, especially Qandil, as a durable refuge. Iran's resupply during the PKK's fighting with the Patriotic Union of Kurdistan in 2000 and 2001 was another documented episode of outside assistance. These relationships varied over time and should not be read as a single, permanent alliance among the governments and armed groups involved.^[3][8]

Control of territory also gave the PKK logistical depth. In its Qandil-controlled area, it imposed its own governing system on hundreds of villages. Its later position in Sinjar extended that network westward and supplied another route for personnel and operations. Leaders of PKK-linked forces and Iran-aligned Popular Mobilization Forces units sought a route through Sinjar toward Syria. Their presence brought the PKK into conflict with Iraqi Kurdish authorities seeking to govern the area and with Turkey, which conducted airstrikes against PKK positions in Iraq.^[14]

The organization also faced restrictions on fundraising and material support abroad because of its terrorist designation. In the United States, those restrictions became the subject of litigation over whether Americans could provide legal advice and other nonmilitary assistance aimed at peaceful advocacy. The proposed lawful activity did not remove the PKK's designation or change the record of its armed campaign. Material support, independent political speech and representation of Kurdish rights were separate issues in that debate.^[15][16]

Attacks and operations

The PKK attacked Turkish military personnel and outposts throughout its insurgency, but also used violence against civilians and Kurdish rivals. In the 1980s, it massacred residents of Kurdish villages that rejected its cause, coercing neighboring communities. On August 20, 1987, PKK attackers killed 24 people in Kilickaya village in Turkey's Siirt province, including 14 children. These attacks make civilian violence central to the organization's history, alongside its battles with Turkish security forces.^[1][2]

From 1996 through 1999, the PKK carried out 16 suicide bombings and attempted five more. Those attacks killed 20 people and wounded many others. Öcalan inspired and ordered the campaign. The PKK also struck tourist and urban targets: on August 27 and 28, 2006, bombings in Istanbul, Antalya and Marmaris killed three people and wounded more than 100. The selection of resorts and civilian spaces extended the effects of the insurgency beyond military sites and Turkey's southeastern provinces.^[1][5]

Its operations in northern Iraq repeatedly prompted Turkish cross-border action. Turkey bombed PKK targets in Qandil and threatened further operations in 2017; subsequent campaigns intensified. In December 2023, PKK attacks on Turkish military outposts in Iraq killed 12 Turkish service members. Turkey then struck Qamishli and other cities in northeast Syria from December 23 to 27. Turkish action against PKK-linked forces in Syria tied the Iraq-based conflict to the future of Kurdish-led authorities across the border.^[7][8]

The PKK's role in Sinjar had a different beginning. When the Islamic State attacked the Yazidis in 2014, thousands of Peshmerga withdrew. PKK fighters established a defense line on Mount Sinjar and opened an escape corridor, moving fleeing Yazidis toward camps in Syria and safer mountain areas. PKK and Peshmerga forces later cooperated in recapturing territory. The intervention helped save lives during the Yazidi genocide; it also gave the PKK a foothold from which it organized local armed units and retained forces after the Islamic State's defeat.^[10][14]

Sinjar's liberation from Islamic State rule in 2015 did not restore stable civilian government. The Kurdistan Democratic Party, PKK-linked forces, Iraqi authorities and Popular Mobilization Forces units competed for influence. The 2020 Sinjar Agreement called for reconstruction, Yazidi returns and removal of PKK forces, yet armed groups and Turkish strikes continued to hinder displaced residents' return in 2022. YBS clashes with the Iraqi Army added to the insecurity. A reported PKK kidnapping of a Yazidi teenager for fighter training, followed by his return to his family in April 2022, illustrated the risks faced by local families even after the Islamic State's defeat.^[10][14]

Designations and international status

The United States designated the PKK a Foreign Terrorist Organization in 1997 and maintained that designation as the organization changed names. In 2002, the PKK adopted the name Kurdistan Freedom and Democracy Congress, or KADEK. The United States added KADEK as a successor name to its terrorist list on May 1, 2003. Later in 2003, the organization adopted Kongra-Gel. Those changes did not create a clean break in organizational identity or end its armed activity. Turkey likewise treats the PKK as a terrorist organization.^[11][16]

The designation had legal consequences for Americans seeking to assist the group. The Humanitarian Law Project sought to advise the PKK about pursuing its aims through peaceful means and challenged limits on advice and nonmilitary aid. A Los Angeles federal judge struck down parts of the restrictions in January 2004. The broader dispute later reached the United States Supreme Court in Holder v. Humanitarian Law Project, with the PKK one of the designated organizations at issue. Advocacy for Kurdish political rights remained distinct from coordinated assistance to the designated PKK.^[15]

Designation questions also shaped relations between Turkey and the United States in Syria. Washington worked with the SDF against the Islamic State while continuing to designate the PKK; Ankara regarded the YPG's PKK links as a direct security threat. The SDF's battlefield gains and the depth of those links are both material to the history of the partnership. Neither the American campaign against the Islamic State nor Turkey's conflict with the PKK makes every Syrian Kurdish institution part of the PKK.^[6][7][12]

Current status

Renewed negotiations led Öcalan in February 2025 to call for the PKK to disarm and dissolve completely, a step beyond his earlier ceasefire proposals. On May 12, 2025, PKK leaders announced that the organization would disband and end its armed struggle. The announcement followed decades of fighting and a period in which Turkish operations had weakened its forces. Implementation still required decisions about weapons, fighters and bases, particularly in northern Iraq. Its Qandil position remained central even after an announced withdrawal from Turkey.^[11][14]

The 2025 call did not itself determine the future of the SDF. Turkey demanded that disarmament extend to PKK branches and affiliates, including forces it associated with the YPG. SDF commander Mazloum Abdi welcomed Öcalan's call but said it applied to the PKK, not SDF activities in Syria. Syria's authorities also sought to prevent PKK attacks from their territory. These positions left Syrian armed forces and their command arrangements to be resolved through separate negotiations.^[11][12]

By August 2026, Abdi had announced the SDF's dissolution as an independent force following its integration into Syrian state institutions. Former SDF personnel entered Syrian military formations, while the future structure of some women's units remained unresolved. In September 2026, the PKK-linked YBS began a separate process to hand over weapons and integrate eligible members into Iraqi security forces. Those later developments concerned linked forces in Syria and Iraq; they were not automatic effects of the PKK's May 2025 announcement. The lasting outcome of disarmament depends on the actual disposition of fighters, weapons and territorial bases, alongside protection of Kurdish civic rights and security for communities affected by the conflict.^[10][13][14]