Modern techno-industrial society has sheltered its citizens from fundamental biological and ecological truths that were well-known to people in the past. The power of science and endless technological innovation has produced a culture insulated in a protective, socially constructed prison of comfort. But nature often has a way of making a dramatic comeback, periodically unleashing plagues and other Invisible Enemies on humanity. The present pandemic is one of many deadly events in our history. However, the 2020 pandemic is not the only Invisible Enemy to confront humanity. Ecological-existential crises can arise and imperil civilizations. One must also consider the socio-economic costs of necessary lockdowns, which are staggering. Invisible Enemies also covers these issues, including the rapidly approaching Great Depression 2.0, social breakdowns, and the rising tide of violence that could ensue. The aim of this book, beginning with the socio-economic consequences of pandemics, is to examine these interconnected threats, and chart a personal survival strategy for individuals. A practical individualist approach to survivalism is advocated, and its practice mapped in detail. As always, your survival is in your own hands.