This book provides a ground-breaking assessment of the Israeli national security experience from the establishment of the country through to the present day. Seventy-five years after its establishment, the State of Israel continues to face an acute national security predicament as a result of the still unresolved Arab–Israeli conflict. This monograph offers a new framework for analyzing this experience, first exploring the crucial events of the past and present that define it, including interstate wars, asymmetrical wars, low-intensity conflicts, and developments in weapons of mass destruction. The book then probes how Israel’s evolving national security doctrine has addressed these various challenges over the years, highlighting the roles of a number of variables: deterrence, warning, and decision; strategic depth and defensible borders; the quality and quantity of fighting men and machines; intelligence; self-reliance in military matters; foreign policy; and the influence of ethnic demography, societal resilience, economic prosperity, and water security. Written in accessible, non-technical language, the book will appeal to general readers seeking an introduction to Israeli security as well as to specialists and researchers in various fields, including Israeli history, Middle Eastern politics, and security studies.