Survivalism

Survivalism is a movement of individuals or groups (called survivalists or preppers) who are actively preparing for emergencies, including possible disruptions in social or political order, on scales from local to international. Survivalists often acquire emergency medical and self-defense training, stockpile food and water, prepare to become self-sufficient, and build structures (e.g., a survival retreat or an underground shelter) that may help them survive a catastrophe.