This book provides an in-depth examination of the intricate landscape of Vietnamese organised crime and its extensive international influence. Covering regions such as Europe, North America, Africa, Asia, and Australia, it elucidates how migration, socioeconomic disparities, and informal networks influence criminal activities across international borders.The chapters address an array of issues, including cannabis cultivation in the United Kingdom and Czech Republic, wildlife trafficking in Africa, cyber fraud in Vietnam, and the exploitation of migrant workers in Taiwan. Utilising interviews, court documents, and real-life narratives, the book sheds light on prominent cases, such as the Essex lorry tragedy and the emergence of youth gangs in Sydney's Cabramatta district. Additionally, it examines how kinship connections and trust networks facilitate these operations, while also highlighting the challenges encountered by law enforcement agencies and policymakers. By integrating theoretical insights with practical examples, this work offers a unique perspective on crime as a global phenomenon intertwined with migration and social vulnerability.Its relevance, timeliness, and accessibility make it valuable for a diverse audience, including academics, students, journalists, practitioners, and individuals concerned with social justice and international security.