A gang is a violent, organized group asserting territorial control through unlawful activities, often characterized by an internal hierarchy and criminal operations. Authors like Jacob Riis portrayed gangs as urban blights stemming from slum conditions, while Frank L. Packard examined their psychological cohesion and harmful dynamics.
Bill Clinton emphasized their attraction to marginalized youth in search of belonging, and Joseph Adams Puffer viewed gangs as innate social structures influencing adolescent identity. These viewpoints illustrate gangs as both criminal organizations and manifestations of societal divisions, their presence linked to poverty, marginalization, and the quest for community.