Self-defense groups are organized collectives formed by individuals to protect themselves and their communities from perceived threats. These groups often arise in response to crime, violence, or social unrest, and they may employ various strategies, including community patrols, education, and advocacy. Members typically share a common goal of enhancing safety and security in their neighborhoods. While some self-defense groups operate legally and focus on non-violent methods, others may engage in more aggressive tactics. The legality and effectiveness of these groups can vary widely depending on local laws and community dynamics. Examples include neighborhood watch programs and militia groups, each with distinct approaches to self-defense.