The Anarchist Black Cross (ABC) is a network of groups and individuals that provide support to political prisoners and those affected by state repression. Founded in the early 20th century, it aims to raise awareness about the struggles of anarchists and other activists who face imprisonment for their beliefs and actions. The ABC also engages in educational efforts to promote anarchist principles and solidarity. The organization operates through various local chapters, each working independently to provide legal aid, financial support, and resources for prisoners. The ABC emphasizes the importance of direct action and community organizing, aligning with broader anarchist values of mutual aid and resistance against oppression.