Survival Theory is a gritty, hard-hitting book written by a US Army infantryman with two decades of experience in combat zones and disaster areas around the globe. Unlike the majority of survival and prepper manuals that assume you are a lone beginner or have minimal knowledge of basic survival craft, Survival Theory presumes your skill level is anywhere from beginner through advanced and that you could be a lone survivalist or member of a prepper community. Survival Theory is distinct from the ordinary step-by-step manuals readers have become familiar with, because the book is a collection of essays and personal studies that challenge your preconceptions and analyzes the genuine brutal nature of who, what, when, where, and why of what to do when civilization fails, without wasting too much time on step-by-step information you can already find elsewhere. The author was a professional infantryman with 6 1/2 years of instructor experience training three branches of the US military and DoD civilians, served in 3 combat zones as an infantry NCO, served in various multinational units in joint operations, and worked in VIP personnel security/law enforcement, counter-intelligence, intelligence gathering, detainee operations, evidence exploitation, counter-insurgency, disaster relief operations, counter-terrorism, physical security, and emergency managemen