This volume provides an in-depth examination of the intricate web of one of the most controversial and multifaceted organisations in modern history. This comprehensive volume presents a detailed examination of the Kurdistan Workers' Party (PKK), tracing its evolution from a Marxist-Leninist entity established during the Cold War to a global network operating under various guises across Türkiye, Syria, Iran, and Iraq. The book presents a comprehensive analysis of the PKK's ideological evolution, propaganda strategies, and operational dynamics, including the utilisation of child soldiers, female militants, and advanced tactics. It is informed by contributions from leading experts in the field.From the socio-political repercussions of its actions to its role in regional geopolitics and international alliances, this book offers an unparalleled examination of the PKK's influence and the lasting scars it has left on societies and economies. It will be of interest to scholars, policymakers and the general public alike, as it promises to challenge existing understandings and broaden perspectives on terrorism, radicalisation and global security.